Abstract
In this paper, we present a novel and simplified topology for a vector-sum phase shifter. The proposed topology leverages only two biphase modulators (based on 90° and 180° hybrid couplers), Wilkinson power dividers, and variable gain components. The biphase modulators generate the necessary quadrature vectors (±I, ±Q) for vector synthesis. To demonstrate the effectiveness of the proposed approach, a passive Kaband four-bit vector-sum phase shifter was designed using PCB technology. The EM simulation results exhibit a return loss of less than 10 dB across the bandwidth from 36 GHz to 44 GHz for all phase shifts, a phase shift range of 360°, and RMS phase and amplitude errors of 1.9° and 4.4 dB, respectively, at 39 GHz. The average insertion loss (IL) was simulated to be 19.5 dB. Despite its simplicity, the phase shifter structure achieves excellent phase performance, showcasing its potential in practical applications.
Original language | English |
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Title of host publication | 2023 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2023 |
Editors | Konstanty Bialkowski, Amir Ebrahimi, Kamran Ghorbani, James Scott, Yang Yang, Xi Zhu |
Place of Publication | Piscataway NJ USA |
Publisher | IEEE, Institute of Electrical and Electronics Engineers |
Pages | 56-59 |
Number of pages | 4 |
ISBN (Electronic) | 9798350324402 |
ISBN (Print) | 9798350324419 |
DOIs | |
Publication status | Published - 2023 |
Event | IEEE International Symposium on Radio-Frequency Integration Technology 2023 - Cairns, Australia Duration: 14 Aug 2023 → 16 Aug 2023 https://ieeexplore.ieee.org/xpl/conhome/10243164/proceeding (Proceedings) https://www.rfit2023.org/index_s.php (Website) |
Conference
Conference | IEEE International Symposium on Radio-Frequency Integration Technology 2023 |
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Abbreviated title | RFIT 2023 |
Country/Territory | Australia |
City | Cairns |
Period | 14/08/23 → 16/08/23 |
Internet address |
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Keywords
- Ka-band
- low-cost
- Microwave phase shifter
- millimeterwave phase shifter
- PCB