2BKRNLD220UKAANTENNA UWB

Rev 6/28/2024 Xi'an Linksci Technology Co., Ltd. Main building, Room A301, ZTE Industrial Park, No.10, Tangyan South Road, Hi-tech Development Zone, Xi'an, Shaanxi, Province, China F ederal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: September 12, 2024 R ef: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: 2BKRNLD220UKA Xi'an Linksci Technology Co., Ltd. certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. S incerely, Contact Person: Pengbo Wang E-mail: [email protected]

Rev 6/28/2024 Xi'an Linksci Technology Co., Ltd. Main building, Room A301, ZTE Industrial Park, No.10, Tangyan South Road, Hi-tech Development Zone, Xi'an, Shaanxi, Province, China Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: September 12, 2024 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: 2BKRNLD220UKA Xi'an Linksci Technology Co., Ltd. certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. Sincerely, Contact Person: Pengbo Wang E-mail: [email protected]

UNITED STATES DESIGNATED AGENT LETTER D ate: 2024-09-12 T O: Federal Communication Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MID 21046 Applicant U.S. designated agent Company Name: Xi'an Linksci Technology Co., Ltd. Company Name: Picus Advisors US LLC Contact Name: Pengbo Wang Contact Name: Ivan Wang Address: Main building, Room A301, ZTE Industrial Park, No.10, Tangyan South Road, Hi-tech Development Zone, Xi'an, Shaanxi, Province, China Address: 839 FM1489 Rd., Brookshire, TE XAS, 77423, USA City/Province/Zip: Xi'an, Shaanxi City/Province/Zip: Brookshire, TEXAS, 77423 Telephone: +86 13572104254Telephone: (713)614-8188 Email: wangpengbo@link- sci.com Email: [email protected] FRN: 0035899996 FRN: 0034336891 Applicant Xi'an Linksci Technology Co., Ltd. U.S. designated agent Picus Advisors US LLC Name (Printed): Pengbo Wang Name (Printed): Ivan Wang Title: Certification Manager Title: CEO Applicable Equipment: FCC ID: 2BKRNLD220UKA ATTN: Director of Certification: We, <Xi'an Linksci Technology Co., Ltd.> and <PicusAdvisorsUSLLC> understand and acknowledge the applicants consent and the designated agent’s obligation to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and e-mail of the designated agentlisted above. We, <Xi'an Linksci Technology Co., Ltd.> and <PicusAdvisorsUSLLC> acknowledge the applicant’s acceptance of its obligation to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. Signature: Signature:

Xi'an Linksci Technology Co., Ltd. Date: September 12, 2024 To: Federal Communications Commission, Authorization & Evaluation Division, 7435 Oakland Mills Road, Columbia, MD 21046 To Whom It May Concern: Xi'an Linksci Technology Co., Ltd. the undersigned, hereby authorizes Mr. Wu Xuewen from Shenzhen BALUN Technology Co., Ltd., to act on the behalf of the Xi'an Linksci Technology Co., Ltd. solely in matters relating to the application for an FCC equipment authorization for FCC ID: 2BKRNLD220UKA including the signing of documents in connection with this Application. Necessary acts carried out by Shenzhen BALUN Technology Co., Ltd. in connection with the Application shall have the same effect as acts of the Xi'an Linksci Technology Co., Ltd. Xi'an Links ci Technology Co., Ltd. also hereby certify that no party to this application is subject to a denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. Section 862. Yours Since rely, Print name: Pengbo Wang Title: Certification Manager Xi'an Linksci Technology Co., Ltd.

Xi'an Linksci Technology Co., Ltd. Main building, Room A301, ZTE Industrial Park, No.10, Tangyan South Road, Hi-tech Development Zone, Xi'an, Shaanxi, Province, China To : Federal Communications Commission, Authorization & Evaluation Division, 7435 Oakland Mills Road, Columbia, MD 21046 RE: Xi'an Linksci Technology Co., Ltd. FCC ID: 2BKRNLD220UKA FCC Certification Confidentiality Request Gentlemen: This letter is to comply with 47 CFR 0.457and 0.459 pertaining to confidentiality material. Xi'an Linksci Technology Co., Ltd. requests that the following documents regarding this submission for FCC ID: 2BKRNLD220UKA be kept Long-Term confidential: Exhibit Type File Name Block Diagram Block Diagram.pdf Schematics Schematics.pdf Operational Description Operational Description.pdf Part list BOM.pdf A nd below exhibit kept short-term confidential (180 days): Exhibit Type File Name External Photos External Photos.pdf Internal Photos Internal Photos.pdf Test Setup Photos Test Setup Photos.pdf Users Manuals Users Manual.pdf T hose documents contain detailed system and equipment description and related information about the product which Xi'an Linksci Technology Co., Ltd. considers to be confidential proprietary, a custom design and,otherwise, not releasable to the general public. Since this design is a basis form which future technological products will evolve, Xi'an Linksci Technology Co., Ltd. considers this information would be of benefit to its competitors, and that the disclosure of the information in these documents would give competitors an unfair advantage in the market. Thank you for your attention to this matter. Yours Sincerely, Name of the Manager: Pengbo Wang E- mail: [email protected] Date: 2024/09/12 Signature:

Xi'an Linksci Technology Co., Ltd. Letter of Authorization Company: Xi'an Linksci Technology Co., Ltd. Address: Main building, Room A301, ZTE Industrial Park, No.10, Tangyan South Road, Hi-tech Development Zone, Xi'an, Shaanxi, Province, China Product Name: ANTENNA-UWB Model Number(s): LD220_UKA Product Description: ANTENNA-UWB We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature: Date: 2024-09-19 Name: Pengbo Wang Title: Certification Manager Company: Xi'an Linksci Technology Co., Ltd.

1.Lable 2.Lablelocation:

Report No.: BL-SZ2481069-701 Tel: +86-755-66850100 E-mail: [email protected] Page No. 1 / 10 Web: www.titcgroup.com Template No.: TRP-FCC-Mobile-2 (2023-10-07) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China TEST REPORT Applicant: Xi'an Linksci Technology Co., Ltd. Address: Main building, Room A301, ZTE Industrial Park, No.10, Tangyan South Road, Hi-tech Development Zone, Xi'an, Shaanxi, Province, China Equipment Type: ANTENNA-UWB Model Name: LD220_UKA Brand Name: Polestar FCC ID: 2BKRNLD220UKA Test Standard: 47 CFR Part 2.1091 KDB 447498 D04 v01 Sample Arrival Date: Aug. 23, 2024 Test Date Aug. 27, 2024 - Sep. 11, 2024 Date of Issue: Sep. 18, 2024 ISSUED BY: Shenzhen BALUN Technology Co., Ltd. Tested by: Xu Rui Checked by: Zong Liyao Approved by: Tolan Tu (Testing Director) _______________ _______________ _______________ Report No.: BL-SZ2481069-701 Tel: +86-755-66850100 E-mail: [email protected] Page No. 2 / 10 Web: www.titcgroup.com Template No.: TRP-FCC-Mobile-2 (2023-10-07) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China Revision History Version Issue Date Revisions Content Rev. 01 Sep. 18, 2024 Initial Issue TABLE OF CONTENTS 1 GENERAL INFORMATION ........................................................................................................ 3 1.1 Test Laboratory ............................................................................................................ 3 1.2 Test Location ................................................................................................................ 3 2 PRODUCT INFORMATION ....................................................................................................... 4 2.1 Applicant Information .................................................................................................... 4 2.2 Manufacturer Information .............................................................................................. 4 2.3 General Description for Equipment under Test (EUT) ................................................... 4 2.4 Technical Information ................................................................................................... 4 3 SUMMARY OF TEST RESULT ................................................................................................. 5 3.1 Test Standards ............................................................................................................. 5 3.2 Limit Standards ............................................................................................................. 5 4 DEVICE CATEGORY AND LEVELS LIMITS ............................................................................. 6 5 ASSESSMENT RESULT ........................................................................................................... 8 5.1 Output Power ............................................................................................................... 8 5.2 Tune-up power ............................................................................................................. 8 5.3 RF Exposure Evaluation Result .................................................................................... 9 5.4 Collocated Power Calculation ....................................................................................... 9 5.5 Conclusion .................................................................................................................... 9 Report No.: BL-SZ2481069-701 Tel: +86-755-66850100 E-mail: [email protected] Page No. 3 / 10 Web: www.titcgroup.com Template No.: TRP-FCC-Mobile-2 (2023-10-07) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China 1 GENERAL INFORMATION 1.1 Test Laboratory Name Shenzhen BALUN Technology Co., Ltd. Address Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China Phone Number +86 755 6685 0100 1.2 Test Location Name Shenzhen BALUN Technology Co., Ltd. Location Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China 1/F, Building B, Ganghongji High-tech Intelligent Industrial Park, No. 1008, Songbai Road, Yangguang Community, Xili Sub-district, Nanshan District, Shenzhen, Guangdong Province, P. R. China Accreditation Certificate The laboratory is a testing organization accredited by FCC as a accredited testing laboratory. The designation number is CN1196. Report No.: BL-SZ2481069-701 Tel: +86-755-66850100 E-mail: [email protected] Page No. 4 / 10 Web: www.titcgroup.com Template No.: TRP-FCC-Mobile-2 (2023-10-07) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China 2 PRODUCT INFORMATION 2.1 Applicant Information Applicant Xi'an Linksci Technology Co., Ltd. Address Main building, Room A301, ZTE Industrial Park, No.10, Tangyan South Road, Hi-tech Development Zone, Xi'an, Shaanxi, Province, China 2.2 Manufacturer Information Manufacturer Xi'an Linksci Technology Co., Ltd. Address Main building, Room A301, ZTE Industrial Park, No.10, Tangyan South Road, Hi-tech Development Zone, Xi'an, Shaanxi, Province, China 2.3 General Description for Equipment under Test (EUT) EUT Name ANTENNA-UWB Model Name Under Test LD220_UKA Series Model Name N/A Description of Model name differentiation N/A Hardware Version UkkD_H003 Software Version 80036201/AA Dimensions (Approx.) N/A Weight (Approx.) N/A 2.4 Technical Information Network and Wireless connectivity Bluetooth BLE, UWB The requirement for the following technical information of the EUT was tested in this report: Operating Mode Bluetooth BLE, UWB Frequency Range Bluetooth 2400 ~ 2483.5 MHz UWB 6000 ~ 8500 MHz Antenna Type Bluetooth Chip Antenna UWB Cer…

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Report No.: BL-SZ2481069-602 Tel: +86-755-66850100 E-mail: [email protected] Page No. 1 / 40 Web: www.titcgroup.com Template No.: TRP-FCC 519 (2022-01-12) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China TEST REPORT Applicant: Xi'an Linksci Technology Co., Ltd. Address: Main building, Room A301, ZTE Industrial Park, No.10, Tangyan South Road, Hi-tech Development Zone, Xi'an, Shaanxi, Province, China Equipment Type: ANTENNA-UWB Model Name: LD220_UKA Brand Name: Polestar FCC ID: 2BKRNLD220UKA Test Standard: 47 CFR Part 15 Subpart F (refer to section 3.1) Sample Arrival Date: Aug. 23, 2024 Test Date: Sep. 03, 2024 - Sep. 11, 2024 Date of Issue: Sep. 18, 2024 ISSUED BY: Shenzhen BALUN Technology Co., Ltd. Tested by: Julie Zhu Checked by: Ye Hongji Approved by: Sunny Zou (Technical Director) _______________ _______________ _______________ Report No.: BL-SZ2481069-602 Tel: +86-755-66850100 E-mail: [email protected] Page No. 2 / 40 Web: www.titcgroup.com Template No.: TRP-FCC 519 (2022-01-12) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China Revision History Version Issue Date Revisions Rev. 01 Sep. 18, 2024 Initial Issue TABLE OF CONTENTS 1 GENERAL INFORMATION ........................................................................................................ 4 1.1 Test Laboratory ............................................................................................................ 4 1.2 Test Location ................................................................................................................ 4 2 PRODUCT INFORMATION ....................................................................................................... 5 2.1 Applicant Information .................................................................................................... 5 2.2 Manufacturer Information .............................................................................................. 5 2.3 General Description for Equipment under Test (EUT) ................................................... 5 2.4 Technical Information ................................................................................................... 6 3 SUMMARY OF TEST RESULTS ............................................................................................... 7 3.1 Test Standards ............................................................................................................. 7 3.2 Test Verdict .................................................................................................................. 7 4 GENERAL TEST CONFIGURATIONS ...................................................................................... 8 4.1 Test Environments ........................................................................................................ 8 4.2 Test Equipment List ...................................................................................................... 8 4.3 Measurement Uncertainty ............................................................................................. 9 4.4 Description of Test Setup ............................................................................................. 9 5 TEST ITEMS ........................................................................................................................... 13 5.1 Antenna Requirements ............................................................................................... 13 5.2 Conducted Emission ................................................................................................... 14 5.3 Operational Limitations ............................................................................................... 15 5.4 UWB Bandwidth ......................................................................................................... 16 5.5 Radiated Emissions .................................................................................................... 17 5.6 Radiated Emissions in GPS Bands ............................................................................. 19 5.7 Peak Emissions within a 50MHz Bandwidth ............................................................... 20 Report No.: BL-SZ2481069-602 Tel: +86-755-66850100 E-mail: [email protected] Page No. 3 / 40 Web: www.titcgroup.com Template No.: TRP-FCC 519 (2022-01-12) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China 5.8 Transmission time ...................................................................................................... 21 ANNEX A TEST RESULT ........................................................................................................... 22 A.1 Conducted Emissions ................................................................................................. 22 A.2 UWB Bandwidth ......................................................................................................... 23 A.3 Radiated Emissions .................................................................................................... 24 A.4 Radiated Emissions in GPS Bands ............................................................................. 30 A.5 Peak Emissions within a 50MHz Bandwidth ............................................................... 34 A.6 Transmission time ...................................................................................................... 38 ANNEX B TEST SETUP PHOTOS ............................................................................................. 39 ANNEX C EUT EXTERNAL PHOTOS ......................................................................................... 39 ANNEX D EUT INTERNAL PHOTOS .......................................................................................... 39 Report No.: BL-SZ2481…

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7GHz Mini UWB Antenna, AEC-Q200 Qualified Detail Specification: Page 1 of 5 ±± ±± ±± 4001 Calle Tecate • Camarillo, CA 93012 • TEL 805.389.1166 FAX 805.389.1821 Ver. 1.1 2018 Johanson Technology, Inc. All Rights Reserved "High Frequency Ceramic Solutions" Part Number 3/16/2018 Avg. Rad Efficiency Let us help you with the antenna design, optimization, and tuning! 7000AT18A1600E-AEC 6.2 - 7.8 84% General Specifications Frequency (GHz) P/N 7000AT18A1600E-AEC 18 months max. -40 to +105°C -40 to +105°C 3,000 Return Loss (dB) Impedance Input Power Storage Period Storage Temperature Operating Temperature Reel Quantity 50 Ω 2 Watts max. (CW) Johanson Technology, Inc. reserves the right to make design changes without notice. All sales are subject to Johanson Technology, Inc. terms and conditions. e.g. 7000AT18A1600(E or S)-AEC100% Tin Packing Style Evaluation Board 7000AT18A1600-EB1SMA (see page 2&3 for details) Bulk (loose) T & R Suffix = E or S Suffix = E P/N Suffix Mechanical Dimensions In L 0.1260.0083.200.2 W 0.0630.0081.600.2 T 0.0511.30+0.1 / -0.2+ 0.004 / -0.008 a 0.0200.0120.500.3 Terminal Configuration Function FEED NC No. 1 2 mm e.g. 7000AT18A1600E-AEC e.g. 7000AT18A1600S-AECSuffix = S Part Number Explanation Peak Gain (dBi) Average Gain (dBi) 3.8 -1.3 10 min. L W a T   Want the layout file? Request it at: www.johansontechnology.com/ask-a-question www.johansontechnology.com 7GHz Mini UWB Antenna, AEC-Q200 QualifiedP/N 7000AT18A1600E-AEC Detail Specification: Page 2 of 5 4001 Calle Tecate • Camarillo, CA 93012 • TEL 805.389.1166 FAX 805.389.1821 Ver. 1.1 2018 Johanson Technology, Inc. All Rights Reserved "High Frequency Ceramic Solutions" 3/16/2018 Mounting Considerations 1: Evaluation Board Johanson Technology, Inc. reserves the right to make design changes without notice. All sales are subject to Johanson Technology, Inc. terms and conditions. 60mm Matching Circuit Ground 50W Feed Line 11.6mm 35mm Antenna 6.5mm "No ground" area shall persist through all PCB layers To order a pre-tuned 50Ω EVB with a female SMA connector click here: www.johansontechnology.com/request-a-sample Reference p/n: 7000AT18A1600-EB1SMA 4.2 2.6 1.6 1.0nH 6.8pF GND Antenna keep-out It is recommended that the designer leave available slots for a "T" (series-shunt- series) network. These particular antenna matching values are used when antenna is mounted on Johanson's evaluation board. The matching values on client’s PCB will be different, just leave them empy until final assembly, then tune. Want to lear how to tune or want us to tune for you? Go to: www.johansontechnology.com/ask-a-question www.johansontechnology.com 7GHz Mini UWB Antenna, AEC-Q200 QualifiedP/N 7000AT18A1600E-AEC Detail Specification: Page 3 of 5 4001 Calle Tecate • Camarillo, CA 93012 • TEL 805.389.1166 FAX 805.389.1821 Ver. 1.1 2018 Johanson Technology, Inc. All Rights Reserved "High Frequency Ceramic Solutions" 3/16/2018 Mounting Considerations 1: Electrical Performance @25°C Johanson Technology, Inc. reserves the right to make design changes without notice. All sales are subject to Johanson Technology, Inc. terms and conditions. Measured Return Loss Would you like the antenna layout? Have antenna tuning issues? Please contact us if you have any questions regarding the implementation of this antenna in your PCB's layout. We'll be happy to guide you to maximize the antenna's performance. Contact our applications engineers at: www.johansontechnology.com/ask-a-question www.johansontechnology.com 7GHz Mini UWB Antenna, AEC-Q200 QualifiedP/N 7000AT18A1600E-AEC Detail Specification: Page 4 of 5 4001 Calle Tecate • Camarillo, CA 93012 • TEL 805.389.1166 FAX 805.389.1821 Ver. 1.1 2018 Johanson Technology, Inc. All Rights Reserved "High Frequency Ceramic Solutions" 3/16/2018 Mounting Considerations 1: Antenna Performance Johanson Technology, Inc. reserves the right to make design changes without notice. All sales are subject to Johanson Technology, Inc. terms and conditions. Z X (0°) Y X (0°) Typical 2D radiation patterns @ 7.0GHz YZ-plane XZ-plane XY-plane Z (0°) Y Z Y Z X X Y www.johansontechnology.com 7GHz Mini UWB Antenna, AEC-Q200 QualifiedP/N 7000AT18A1600E-AEC Detail Specification: Page 5 of 5 4001 Calle Tecate • Camarillo, CA 93012 • TEL 805.389.1166 FAX 805.389.1821 Ver. 1.1 2018 Johanson Technology, Inc. All Rights Reserved Johanson Technology, Inc. reserves the right to make design changes without notice. All sales are subject to Johanson Technology, Inc. terms and conditions. Soldering Information MSL Info Packaging information For layout review contact our Applications Team at: RoHS Compliance "High Frequency Ceramic Solutions" Antenna tuning, optimization, and validation services: For more antennas and to download measured S-parameters, go to: 3/16/2018 Need help designing the antenna in? Use our antenna design services! www.johansontechnology.com/ipc-antenna-services We provide 2 free layout reviews and if you need us to tune and characterize the antenna on your product (inside anechoic chamber) we can do that too. Small lab fee may apply for the latter. www.johansontechnology.com/ipc-antenna-services www.johansontechnology.com/antennas www.johansontechnology.com/ipcsoldering-profile www.johansontechnology.com/msl-rating www.johansontechnology.com/tape-reel-packaging www.johansontechnology.com/ask-a-question www.johansontechnology.com/rohs-compliance www.johansontechnology.com