Ka-Band Passive Phased-Array Antenna With Substrate Integrated Waveguide Tunable Phase Shifter
| Autor: | Safieddin Safavi-Naeini, Ardeshir Palizban, Saeid Nikmehr, Zahra Rahimian Omam, Ali Pourziad, Suren Gigoyan, Amir Raeesi, Wael M. Abdel-Wahab |
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| Rok vydání: | 2020 |
| Předmět: |
Waveguide (electromagnetism)
Materials science business.industry 020206 networking & telecommunications 02 engineering and technology Dielectric 7. Clean energy Line (electrical engineering) Transmission line 0202 electrical engineering electronic engineering information engineering Optoelectronics Passive electronically scanned array Ka band Electrical and Electronic Engineering Antenna (radio) business Phase shift module |
| Zdroj: | IEEE Transactions on Antennas and Propagation. 68:6039-6048 |
| ISSN: | 1558-2221 0018-926X |
| DOI: | 10.1109/tap.2020.2983838 |
| Popis: | A low-cost and low-profile $Ka$ -band passive phased-array antenna (PAA) using continuously tunable substrate-integrated waveguide (SIW) phase shifter is presented in this article. The phase shifting mechanism is based on perturbing the electric field of the slotted SIW (SSIW) line by putting a high dielectric constant slab over the slot of SIW. A systematic approach based on a simple transmission line (TL) circuit model which can support different modes is developed as a fast method for design optimization. It provides insightful physical understanding of the operating mechanism of the proposed phase shifter. In addition, a fully verified TL model of the $1\times 4$ SIW PAA is presented and used to predict and optimize the overall reflection coefficients and radiation patterns at different scanning angles. The TL circuit model is verified by full-wave simulations. As a design example, a $1\times 4$ SIW-based phased-array is designed, fabricated, and measured to validate phase shifter performance and capabilities. The prototype exhibits a continuous beam scanning range from −20° to +20° covering the whole operating band of 29–31 GHz. |
| Databáze: | OpenAIRE |
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