77-GHz four-element phased-array radar receiver front end

Seyyedesfahlan, Mirmehdi and Öztürk, Efe and Kaynak, Mehmet and Tekin, İbrahim (2016) 77-GHz four-element phased-array radar receiver front end. IEEE Transactions on Components, Packaging, and Manufacturing Technology, 6 (8). pp. 1162-1173. ISSN 2156-3950 (Print) 2156-3985 (Online)

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A phased-array receiver module operating at 77 GHz is designed and manufactured to obtain beam-steering capability. The module has four patch antennas integrated with three active phase shifter (APS) chips on a single-layer Rogers 3003 printed circuit board PCB board. The W-band 1.65-mm(2) novel APS chip is fabricated using 0.13-mu m SiGe Heterojunction Bipolar Transistor (HBT) technology. The APS consumes 100-mW dc power and achieves a peak gain of 9 dB at W-band and covers 360 degrees. The phase shifter chips and PCB are packaged using low-cost wire-bond interconnections with insertion loss less than 7.5 dB. A novel method that exploits Klopfenstein tapering is also designed to connect coplanar waveguide to microstrip line with minimum insertion loss around 77 GHz. The measured gains of the phased-array receiver and passive four-element antenna array are compared. The module and passive array achieve the maximum gains of 9.7 and 10.4 dBi at 77 GHz. The simulated and measured results present well agreement at the W-band frequency. The beam can be steered to +/- 30 degrees.
Item Type: Article
Uncontrolled Keywords: 77-GHz automotive radar array; active phase shifter; microstrip (MS)-to-coplanar waveguide (CPW) lines' transition; SiGe Heterojunction Bipolar Transistor (HBT) 0.13 mu m
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800-8360 Electronics
Divisions: Faculty of Engineering and Natural Sciences > Academic programs > Electronics
Faculty of Engineering and Natural Sciences
Depositing User: İbrahim Tekin
Date Deposited: 11 Nov 2016 15:20
Last Modified: 26 Apr 2022 09:36
URI: https://research.sabanciuniv.edu/id/eprint/30027

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