TY - JOUR
T1 - Compact, wideband, planar filtenna with reconfigurable tri-polarization diversity
AU - Tang, Ming Chun
AU - Li, Dajiang
AU - Chen, Xiaoming
AU - Wang, Yang
AU - Hu, Kunzhi
AU - Ziolkowski, Richard W.
N1 - Funding Information:
Manuscript received May 10, 2018; revised April 22, 2019; accepted April 29, 2019. Date of publication June 6, 2019; date of current version August 12, 2019. This work was supported in part by the National Natural Science Foundation of China under Contract 61471072, in part by the Funding of the Innovative Leading Talents in Science and Technology of Chongqing under Contract CSTCCXLJRC201705, in part by the Funding of the Young Backbone Teachers in Colleges and Universities of Chongqing under Contract 0307001104102, in part by the Opening Subject of State Key Laboratory of Millimeter Waves under Contract K201732, and in part by the Australian Research Council under Grant DP160102219. (Corresponding author: Ming-Chun Tang.) M.-C. Tang, D. Li, X. Chen, Y. Wang, and K. Hu are with the Key Laboratory of Dependable Service Computing in Cyber Physical Society, Ministry of Education, College of Communication Engineering, Chongqing University, Chongqing 400044, China, and also with the State Key Laboratory of Millimeter Waves, Nanjing 210096, China (e-mail: [email protected]).
Publisher Copyright:
© 1963-2012 IEEE.
PY - 2019/8
Y1 - 2019/8
N2 - A compact, wideband, planar filtenna with reconfigurable tri-polarization diversity is presented. The operating mechanisms of its bandpass filter and its bandwidth enhancement are explained through a step-by-step design evolution. Its feed network consists of three J-shaped probes, a Wilkinson power divider, and phase shifters. Reconfigurability is achieved by integrating four pairs of p-i-n (PIN) diodes into it. Three polarization-reconfigurable states: linear polarization (LP), left-hand circular polarization (LHCP), and right-hand circular polarization (RHCP), are dynamically controlled by those PIN diode switches. A prototype was fabricated, assembled, and tested, which has a compact size (0.48 λ0 × 0.45 λ0) and is low profile (0.096λ0). The measured results, in good agreement with their simulated values, demonstrate that the filtenna has a wide -10-dB impedance bandwidth (|S11| ≤ -10 dB) of 15.6%, which completely encompasses the axial ratio (AR) bandwidths (AR ≤ 3 dB) of the two circular polarization (CP) states. The realized gain values over this bandwidth: 7.7 ± 0.5 dBi, are very stable for all three dynamical states. Furthermore, the filtenna exhibits good out-of-band rejection performance characteristics.
AB - A compact, wideband, planar filtenna with reconfigurable tri-polarization diversity is presented. The operating mechanisms of its bandpass filter and its bandwidth enhancement are explained through a step-by-step design evolution. Its feed network consists of three J-shaped probes, a Wilkinson power divider, and phase shifters. Reconfigurability is achieved by integrating four pairs of p-i-n (PIN) diodes into it. Three polarization-reconfigurable states: linear polarization (LP), left-hand circular polarization (LHCP), and right-hand circular polarization (RHCP), are dynamically controlled by those PIN diode switches. A prototype was fabricated, assembled, and tested, which has a compact size (0.48 λ0 × 0.45 λ0) and is low profile (0.096λ0). The measured results, in good agreement with their simulated values, demonstrate that the filtenna has a wide -10-dB impedance bandwidth (|S11| ≤ -10 dB) of 15.6%, which completely encompasses the axial ratio (AR) bandwidths (AR ≤ 3 dB) of the two circular polarization (CP) states. The realized gain values over this bandwidth: 7.7 ± 0.5 dBi, are very stable for all three dynamical states. Furthermore, the filtenna exhibits good out-of-band rejection performance characteristics.
KW - Compact
KW - filtennas
KW - planar antennas
KW - polarization diversity
KW - reconfigurable antennas
KW - wideband
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U2 - 10.1109/TAP.2019.2920298
DO - 10.1109/TAP.2019.2920298
M3 - Article
AN - SCOPUS:85070598262
SN - 0018-926X
VL - 67
SP - 5689
EP - 5694
JO - IEEE Transactions on Antennas and Propagation
JF - IEEE Transactions on Antennas and Propagation
IS - 8
M1 - 8732651
ER -