Nonreciprocal-beam phased-array antennas
Nonreciprocal-beam phased-array antennas
This study presents a nonreciprocal-beam phased-array antenna constituted of phase-gradient patch radiators integrated with transistor-based nonreciprocal phase shifters. Such an antenna exhibits different beams for transmission and reception states. The proposed phased-array antenna provides power amplification for both transmission and reception states, which is of paramount importance in most practical applications. In addition, in contrast to the recently proposed time-modulated antennas, the proposed nonreciprocal-beam phased-array antenna introduces no undesired time harmonics and unwanted frequency conversion, requires no radio frequency bias signal. Furthermore, the nonreciprocal phased-array antenna is lightweight and is amenable to integrated circuit fabrication. The transmission and reception beam angles, the beam shapes, and the power amplification level may be easily tuned by changing the direct current (dc) bias of the transistors and phase of the passive phase shifters. Such a nonreciprocal-beam phased-array antenna is expected to find military and commercial applications.
physics.app-ph
Karimian, Reza
bf840a5a-616a-4e8f-8ba0-945f08d99c3c
Ahmadi, Shahrokh
1b3c11f0-c327-4bc6-93aa-dbc278cbe5e0
Zaghloul, Mona
32d6f561-aff1-4463-a5dd-21023ce4b541
Taravati, Sajjad
0026f25d-c919-4273-b956-8fe9795b31ce
7 June 2020
Karimian, Reza
bf840a5a-616a-4e8f-8ba0-945f08d99c3c
Ahmadi, Shahrokh
1b3c11f0-c327-4bc6-93aa-dbc278cbe5e0
Zaghloul, Mona
32d6f561-aff1-4463-a5dd-21023ce4b541
Taravati, Sajjad
0026f25d-c919-4273-b956-8fe9795b31ce
[Unknown type: UNSPECIFIED]
Abstract
This study presents a nonreciprocal-beam phased-array antenna constituted of phase-gradient patch radiators integrated with transistor-based nonreciprocal phase shifters. Such an antenna exhibits different beams for transmission and reception states. The proposed phased-array antenna provides power amplification for both transmission and reception states, which is of paramount importance in most practical applications. In addition, in contrast to the recently proposed time-modulated antennas, the proposed nonreciprocal-beam phased-array antenna introduces no undesired time harmonics and unwanted frequency conversion, requires no radio frequency bias signal. Furthermore, the nonreciprocal phased-array antenna is lightweight and is amenable to integrated circuit fabrication. The transmission and reception beam angles, the beam shapes, and the power amplification level may be easily tuned by changing the direct current (dc) bias of the transistors and phase of the passive phase shifters. Such a nonreciprocal-beam phased-array antenna is expected to find military and commercial applications.
Text
2006.04211v4
- Author's Original
Available under License Other.
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Published date: 7 June 2020
Keywords:
physics.app-ph
Identifiers
Local EPrints ID: 487783
URI: http://eprints.soton.ac.uk/id/eprint/487783
PURE UUID: 2b533ce5-c730-474a-b5cd-486fda33c1e0
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Date deposited: 05 Mar 2024 18:06
Last modified: 17 Mar 2024 07:53
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Contributors
Author:
Reza Karimian
Author:
Shahrokh Ahmadi
Author:
Mona Zaghloul
Author:
Sajjad Taravati
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