E675JS0082Multi-Carrier RF Power Amplifier

Installation and Service Manual G3L-929-135 Multi-Carrier Power Am plifier 044-05xxx Rev A January 2006 044-05xxx Rev A © 2006 Powerwave Technologies, Incorporated. All rights reserved. Powerwave Technologies and the Powerwave logo are registered trademarks Powerwave Technologies, Inc. reserves the right to make changes to the documentation and equipment including, but not limited to, component substitution and circuitry changes. Changes that impact this manual may subsequently be incorporated in a later revision of this manual. This Powerwave product is designed to operate within the Normal Operating (typical operating) ranges or conditions specified in this document. Operation of this equipment beyond the specified ranges in this document may cause (1) spurious emissions that violate regulatory requirements; (2) the equipment to be automatically removed from service when maximum thresholds are exceeded; or (3) the equipment to not perform in accordance with its specifications. It is the Operator's responsibility to ensure this equipment is properly installed and operated within Powerwave operating specifications to obtain proper performance from the equipment and to comply with regulatory requirements. 044-05177 Rev Ai Warnings, Cautions, and Notes Warnings, cautions, and notes are found throughout this manual. The associated icons in warnings and cautions are used to quickly identify a potential condition that could result in the consequences described below if precautions are not taken. Notes clarify and provide additional information to assist the user. WARNING This warning symbol means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical and RF circuitry and be familiar with standard practices for preventing accidents. CAUTION This caution symbol means reader, be careful. In this situation, the user might do something that could result in equipment damage or loss of data. Note This note symbol means reader, take note. Notes contain helpful suggestions or references to material not covered in the document. Procedures are not contained in notes. ii044-05xxx Rev A Revision Record Revision Record Revision LetterDate of EntryReason for Change AJanuary, 2006Original version of product 044-05177 Rev Aiii Table of Contents Chapter NumberTitlePage Chapter 1General Description1-1 1-1Introduction................................................................................................................................1-1 1-2General Description................................................................................................................... 1-1 1-3Functional and Physical Specifications..................................................................................... 1-4 1-4Ordering Information.................................................................................................................. 1-5 1-5General Safety..............................................................................Error! Bookmark not defined. 1-5.1Electronic Modules.......................................................................Error! Bookmark not defined. Chapter 2Installation2-1 2-1Introduction................................................................................................................................2-1 2-2Unpacking and Inspection......................................................................................................... 2-1 2-3Air Conditioning......................................................................................................................... 2-1 2-4Electrical Load........................................................................................................................... 2-2 2-5Installation Instructions.............................................................................................................. 2-3 2-5.1Installing the Amplifier into the Sub-rack................................................................................... 2-3 2-5.2Combo Connector...................................................................................................................... 2-4 Chapter 3Operating Instructions3-1 3-1Introduction................................................................................................................................3-1 3-2Controls and Indicators.............................................................................................................. 3-1 3-2.1RESET Switch........................................................................................................................... 3-1 3-2.2LED Status Indicator and RESET/On/Off Toggle Switch.......................................................... 3-1 3-2.3RJ-11 PC Interface.................................................................................................................... 3-2 3-3Initial Start-Up and Operating Procedures................................................................................. 3-2 Chapter 4Principles of Operation................................................................... 4-1 4-1Introduction................................................................................................................................4-1 4-2RF Input Signal.......................................................................................................................... 4-1 4-3RF Output Load......................................................................................................................... 4-1 4-4Functional Description............................................................................................................... 4-1 4-4.1Preamplifier................................................................................................................................4-2 4-4.2Main and Error Amplifiers........................................…

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044-05xxx Rev A 1-2 Figure 1-2. Model G3L-929-135 Amplifier Side View Figure 1-3. Model G3L-929-135 Amplifier Bottom View 0.389 in. (0.99 cm) 17.06 in. (43.33 cm) 1.59 in. (4.03 cm) 13.96 in. (35.45 cm) 19.58 in. (49.73 cm) 12.09 in. (30.70 cm) 1.90 in. (4.82 cm) 3.86 in. (9.80 cm) Label

Principles of Operation 1-1 Introduction This chapter contains functional descriptions of the G3L-929-135 Multi-Carrier Power Amplifier (MCPA). 1-2 RF Input Signal The maximum input power for all carrier frequencies to the MCPA should not exceed the limits specified in Error! Reference source not found. 1-3 RF Output Load For good power transfer to the RF load, the load impedance should be as closely matched to the output impedance of the MCPA as possible. A VSWR of less than 1.5:1 across the working band of frequencies is satisfactory. If the MCPA is operated into a filter, it maintains its distortion characteristics outside the signal band even if VSWR is infinite. A parasitic signal of less than one-watt incident on the output will not cause distortion at a higher level than the normal forward distortion (i.e. -65 dBc). 1-4 Functional Description The MCPA is a linear, feed-forward amplifier that operates in the frequency band from 935 MHz to 940 MHz with an instantaneous bandwidth of less than 5 MHz. Instantaneous bandwidth is the maximum frequency band that a set of two or more signals can occupy .The MCPA’s instantaneous bandwidth is set automatically and does not require manual setup. The MCPA provides a gain of 63 dB. Typical outputs for different carrier types are specified in Error! Reference source not found.. Each MCPA module is self-contained and functionally independent of any other MCPA in a system. The MCPAs are designed for parallel operation to achieve a high peak power output. Each MCPA has an alarm board that monitors performance. If a failure or fault occurs, it is transmitted to the subrack via the module rear connector. The sub-rack reports all alarms to the host system. Continuously comparing active paths with passive references, and correcting for small variations through RF feedback maintains constant gain. All gain variations, for example those due to temperature, are reduced to the passive reference variations. Refer to Figure 0-1 for the amplifier functional block diagram. The amplifier consists of the following major functional blocks: • Preamplifier • Main amplifier • Error amplifier • Alarm monitoring and control • First and second loop control circuits • Pilot tone generator Figure 0-1. Functional Block Diagram 1-4.1 Preamplifier The RF carriers are applied to the input port of the MCPA, where they are fed to the preamplifier stage. The preamplifier provides two stages of class-A mode-amplification. The output of the preamplifier is then split into two paths, one to the main amplifier and one to the error amplifier. 1-4.2 Main and Error Amplifiers The main amplifier provides a balance of gain and power and employs class AB amplification for maximum efficiency. The error amplifier and feed forward loops correct signal distortion introduced by non-linearity in the class AB main amplifier. The error amplifier operates in class A mode. The RF signal from the preamp is coupled to an attenuator and phase shifter in the first feed-forward loop where it is phase shifted by 180 degrees and amplified in the pre-main amplifier. The output from the pre-main amplifier is fed to the class AB main amplifier. The signal output from the main amplifier is sampled using a coupler, and the sample signal is combined with the main input signal and input to the second feed-forward loop. The error signal is attenuated, phase shifted 180 degrees, then fed to the error amplifier where it is amplified to a level identical to the sample output from the main amplifier. The output from the error amplifier is then coupled back and added to the output from the main amplifier. The control loops continuously make adjustments to cancel out any distortion in the final output signals. 1-4.3 Alarm Monitoring and Control The alarm logic controls the +5 Vdc bias voltage that shuts down the amplifier. During routine operation, all normal variations are automatically compensated for by the feed-forward loop control. However, when large variations occur beyond the adjustment range of the loop control, a loop fault occurs. When this happens, an alarm indicator is illuminated on the front panel of the sub-rack. The fault is transmitted back to an external summary module via the external alarm interface connection on the front panel of the sub-rack. 1-4.4 First and Second Loop Control Circuits The primary function of the first loop is to amplify the carrier signals and isolate an error signal for the second loop. The primary function of the second loop is to amplify the error signal to cancel out spurious products developed in the main amplifier. The input signal is amplified by a preamplifier and fed to a coupler and delay line. The signal from the coupler is fed to the attenuator and phase shifter in the first loop. The first loop control section phase shifts the main input signals by 180 degrees and constantly monitors the output for correct phase and gain. The second loop control section obtains a sample of the distortion added to the output signals by the main amplifiers. The signal is phase shifted 180 degrees, then fed to the error amplifier where it is amplified to the same power level as the input sample. The signal is then coupled to the error signal of the main amplifier output. The final output is monitored by the second loop and adjusted to ensure that the signal distortion and intermodulation distortion (IMD) on the final output is cancelled out. 1-4.5 Pilot Tone Generator A pilot tone is an internally generated signal, who’s precise frequency, phase, and amplitude is known. Passing through the amplifier, the pilot tone is distorted in the same way that signals are distorted. To accomplish this, the pilot tone signal is injected into the first loop and then detected at the feed-forward output of the second loop. The pilot tone is coupled off of the main amplifier, thus creating a second pilot tone, attenuated and phase shifted 180 degrees to be used as the reference. This second pilot to…

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Maintenance 1-1 Introduction This chapter contains periodic maintenance and performance test procedures for the G3L-929-135 Multi-Carrier Power Amplifier (MCPA). Note Do not break the seals on equipment under warranty or the warranty will be null and void. Do not return equipment for warranty or repair service until proper shipping instructions are received from the factory. 1-2 Periodic Maintenance Periodic maintenance requirements and the intervals at which the tasks should be performed are listed in Table 0-1. Table 0-1. Periodic Maintenance Task Interval Action Inspection: Connectors 12 Months C C h h e e c c k k R R F F c c o o n n n n e e c c t t o o r r s s t t o o e e n n s s u u r r e e t t h h a a t t t t h h e e y y a a r r e e t t i i g g h h t t . . P P e e r r f f o o r r m m a a n n c c e e T T e e s s t t s s 12 Months P P e e r r f f o o r r m m a a n n n n u u a a l l t t e e s s t t p p e e r r p p a a r r a a g g r r a a p p h h 5 5 - - 4 4 . . C C l l e e a a n n F F a a n n s s / / H H e e a a t t S S i i n n k k s s 3 Months I I n n s s p p e e c c t t f f o o r r d d e e b b r r i i s s . . R R e e m m o o v v e e d d u u s s t t w w i i t t h h a a s s o o f f t t c c l l o o t t h h / / b b r r u u s s h h o o r r v v a a c c u u u u m m c c l l e e a a n n e e r r . . C C l l e e a a n n t t h h e e f f a a n n b b l l a a d d e e s s i i n n t t h h e e a a s s s s o o c c i i a a t t e e d d s s u u b b - - r r a a c c k k . . 1-3 Test Equipment Required For Test Test equipment required to test the amplifier is listed in Table 0-2. Equivalent test equipment may be substituted for any item, keeping in mind that a thermistor type power meter is required. Note All RF test equipment required must be calibrated to 0.05 dB resolutions. Any deviation from the nominal attenuation must be accounted for and factored into all output readings. Table 0-2. Test Equipment Required Nomenclature Manufacturer Model Signal Generator Agilent 8656B 20 dB Attenuator, 250 Watt Bird 20 dB Attenuator, 20 Watt (2 each) Bird Tenuline Spectrum Analyzer Agilent 8560E Coax Directional Coupler Agilent 778D Power Meter / Sensor Agilent 437B / 8481A Arbitrary Waveform Generator Sony AWG2021 Network Analyzer Agilent 8753C * Any equipment substituted should have equivalent specifications. 1-4 Amplifier Performance Test Performance testing should be conducted every 12 months to ensure that the amplifier system meets the operational specifications listed in Table 0-3. Also verify system performance after any amplifier module is replaced in the field. The test equipment required to perform the testing is listed in Table 0-2, and the test setup is shown in Figure 0-1 and Figure 0-2. Note The frequencies used in this test are typical for an amplifier with a 5 MHz band from 935 MHz to 940 MHz. Select evenly spaced F1, F2, F3, and F4 frequencies that cover the instantaneous bandwidth of your system. To check amplifier performance, proceed as follows: WARNING Do not apply any RF signals to the amplifier input until instructed to do so. CAUTION Ensure that the correct amount of attenuation is used between the amplifier RF connections and the test equipment to prevent overdrive of the amplifier or the test equipment. 1-4.1 Amplifier Spurious Emissions Test: 1. Connect the test equipment as shown in Figure 0-1. 2. Configure the signal source to produce four frequencies evenly spaced across the instantaneous bandwidth to be used for the amplifier under test. 3. Adjust the output of the signal source to excite the amplifier to its rated output. 4. Use the spectrum analyzer to measure the spurious emissions performance. 5. Record test data in Table 5-3. Verify that the data are within the specifications shown in Error! Reference source not found.. 6. Reduce the output of the signal source to minimum. 7. Switch off the Main Power Switch on the amplifier under test. G3L-929-135 PYTHON Multi- Channel Power Amplifier Gain = 63 dB Output = 135 W = +51.3 dBm 27 Vdc RF Out RF In 20 dB Directional Coupler 30 dB Attn 250 W High Pwr 04-0262B-A Sensor Head 8482A 30 dB Attn 20 W 20 dB Directional Coupler Sensor Head 8482A Power Meter INPUT HP 8560 E * Example. Ensure that sufficient attenuation is present between the amplifier output and your test equipment to avoid overdrive or damage. Refer to test equipment specifications. S HP 8648 A HP 437B Signal Source Po w Me TEST CONFIGURATION A 20 dB Attn Figure 0-1. Amplifier Test Setup Diagram – Configuration A 1-4.2 Gain Test: 8. Disconnect: 1. Spectrum analyzer 2. Signal source. 3. Power Meter and Sensor Head. 9. Connect the network analyzer as shown in Figure 0-2. 10. Set network analyzer as follows: 4. Power output to -11 dBm max. 5. Frequency start to 935 MHz. 6. Frequency stop to 940 MHz. 7. Normalize the network analyzer for gain and return loss. 11. Switch on the amplifier under test, and ensure that the STATUS switch is in the center position. 12. Check the amplifier gain across the band from 935 MHz to 940 MHz. Gain should be as specified in Error! Reference source not found.. Record test data in Table 0-3. G3L-929-135 PYTHON Multi- Channel Power Amplifier Gain = 63 dB Output = 135 W = +51.3 dBm 27 Vdc RF Out RF In 40 dB Attn 250 W +1.3 dBm* * Example. Ensure that sufficient attenuation is present between the amplifier output and your test equipment to avoid overdrive or damage. Refer to test equipment specifications. Network Analyzer TEST CONFIGURATION B 04-0263B-A PORT 1 HP 8753 D PORT 2 Figure 0-2. Amplifier Test Setup – Configuration B 1-4.3 Input Return Loss: 13. Retain the test configuration shown in Figure 0-2. 14. Read and record the S 11 return loss measurement on network analyzer. Record test data in Table 0-3. 15. Switch off the amplifier under test. 16. Disconnect the test equipment. 1-4.4 Test Data Sheet Record the amplifier’s performance test data below. DATE MODULE S/N Test Conditions: Load and Source Impedance: 50 Ohms VSWR: < 1.5:1 Supply Voltage:…

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DC Voltages 27 Vdc, 3A into the output devices.

Page 1 of 64 Report No.: FC05-080 POWERWAVE TECHNOLOGIES, INC. TEST REPORT FOR THE 900 MHZ MULTI-CARRIER RF POWER AMPLIFIER, G3L-929-135 FCC PART 90 COMPLIANCE DATE OF ISSUE: NOVEMBER 29, 2005 PREPARED FOR: Powerwave Technologies, Inc. 1801 E. St. Andrew Place Santa Ana, CA 92705 PREPARED BY: Mary Ellen Clayton CKC Laboratories, Inc. 5046 Sierra Pines Drive Mariposa, CA 95338 P.O. No.: 71425 W.O. No.: 83866 Date of test: October 5 – November 28, 2005 Report No.: FC05-080 This report contains a total of 64 pages and may be reproduced in full only. Partial reproduction may only be done with the written consent of CKC Laboratories, Inc. The results in this report apply only to the items tested, as identified herein. Page 2 of 64 Report No.: FC05-080 TABLE OF CONTENTS Administrative Information .............................................................................................3 Conditions for Compliance ..............................................................................................4 Approvals .........................................................................................................................4 Equipment Under Test (EUT) Description ......................................................................5 Equipment Under Test .....................................................................................................5 Peripheral Devices ...........................................................................................................5 Temperature and Humidity During Testing.....................................................................6 FCC 2.1033(c)(3) User’s Manual ....................................................................................6 FCC 2.1033(c)(4) Type of Emissions ..............................................................................6 FCC 2.1033(c)(5) Frequency Range................................................................................6 FCC 2.1033(c)(6) Operating Power.................................................................................6 FCC 2.1033(c)(7) Maximum Power Rating ....................................................................6 FCC 2.1033(c)(8) DC Voltages .......................................................................................6 FCC 2.1033(c)(9) Tune-Up Procedure ............................................................................6 FCC 2.1033(c)(10) Schematics and Circuitry Description..............................................7 FCC 2.1033(c)(11) Label and Placement ........................................................................7 FCC 2.1033(c)(12) Submittal Photos ..............................................................................7 FCC 2.1033(c)(13) Modulation Information ...................................................................7 FCC 2.1033(c)(14)/2.1046/90.365 - RF Power Output ...................................................8 FCC 2.1033(c)(14)/2.1047(b) - Audio Frequency Response...........................................10 FCC 2.1033(c)(14)/2.1047(b) - Modulation Limiting Response.....................................10 Occupied Bandwidth –20dBc ..........................................................................................10 Bandedge..........................................................................................................................19 FCC 2.1033(c)(14)/2.1051/90.210 - Spurious Emissions at Antenna Terminal..............32 FCC 2.1033(c)(14)/2.1053/90.210 - Field Strength of Spurious Radiation ....................36 Input Plot..........................................................................................................................41 Output Plot .......................................................................................................................51 Intermodulation................................................................................................................61 Page 3 of 64 Report No.: FC05-080 ADMINISTRATIVE INFORMATION DATE OF TEST: October 5 – November 28, 2005 DATE OF RECEIPT: October 5, 2005 FREQUENCY RANGE TESTED: 9 kHz-10 GHz MANUFACTURER: Powerwave Technologies, Inc. 1801 E. St. Andrew Place Santa Ana, CA 92705 REPRESENTATIVE: Jeffrey Dale TEST LOCATION: CKC Laboratories, Inc. 110 Olinda Place Brea, CA 92823 TEST METHOD: FCC Part 90, ANSI/TIA/EIA-603-B (2002) PURPOSE OF TEST: To demonstrate the compliance of the 900 MHz Multi-Carrier RF Power Amplifier, G3L-929-135 with the requirements for FCC Part 90 devices. Page 4 of 64 Report No.: FC05-080 CONDITIONS FOR COMPLIANCE No modifications to the EUT were necessary to comply. APPROVALS Steve Behm, Director of Engineering Services QUALITY ASSURANCE:TEST PERSONNEL: Joyce Walker, Quality Assurance Administrative Manager Stuart Yamamoto, EMC Engineer Eddie Wong, EMC Engineer Page 5 of 64 Report No.: FC05-080 EQUIPMENT UNDER TEST (EUT) DESCRIPTION The customer declares the EUT tested by CKC Laboratories was representative of a production unit. The EUT is a multi-carrier RF power amplifier operating in the 935-940 MHz frequency range. EQUIPMENT UNDER TEST 900 MHz Multi-Carrier RF Power Amplifier Manuf: Powerwave Model: G3L-929-135 Serial: PD00000D3Y FCC ID: E675JS0082 (pending) PERIPHERAL DEVICES The EUT was tested with the following peripheral device(s): Power Meter Manuf: Agilent Model: E4419A Serial: US38260914 FCC ID: NA ECG Manuf: Agilent Model: E4433B Serial: US40051477 FCC ID: NA Pre Amplifier Manuf: Mini Circuit Model: 24L-1724HKN-SMA Serial: D020801-06 FCC ID: NA Power Supply Manuf: HP Model: 8269B Serial: 2436-11864 FCC ID: NA Page 6 of 64 Report No.: FC05-080 TEMPERATURE AND HUMIDITY DURING TESTING The temperature during testing was within +15°C and + 35°C. The relative humidity was between 20% and 75%. FCC 2.1033(c)(3) USER’S MANUAL The necessary information is contained in a separate document. FCC 2.1033 (c)(4) TYPE OF EMISSIONS GXW, G7W FCC 2.1033 (c)(5) FREQUE…

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PHOTOGRAPH SHOWING RF POWER OUTPUT TEST SETUP PHOTOGRAPH SHOWING ANTENNA CONDUCTED EMISSIONS PHOTOGRAPH SHOWING RADIATED EMISSIONS Radiated Emissions - Front View PHOTOGRAPH SHOWING RADIATED EMISSIONS Radiated Emissions - Back View