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Wideband Circularly Polarized Reconfigurable Crossed Dipole Antenna
- Issue Date
- 2018
- Publisher
- IEEE
- Keywords
- reconfigurable antennas; crossde dipole; wideband; circular polarization; PIN diodes
- Citation
- 2018 AUSTRALIAN MICROWAVE SYMPOSIUM (AMS), pp 29 - 30
- Pages
- 2
- Indexed
- FOREIGN
- Journal Title
- 2018 AUSTRALIAN MICROWAVE SYMPOSIUM (AMS)
- Start Page
- 29
- End Page
- 30
- Abstract
- A simple design of a wideband circularly polarized (CP) reconfigurable antenna is proposed. The primary radiator consists of two orthogonal straight dipoles while a dual-cavity structure is employed to significantly enhance the overall CP performance of the antenna. The polarization reconfigurability is realized by electronically switching the ON/OFF states of two PIN-diode pairs. Thus, the antenna can radiate CP wave with either rotating senses. The proposed design exhibits a wide simulated impedance bandwidth (BW) of 70.8% and an overlapped axial ratio (AR) BW of 58.5%. In addition, the antenna realized gain is greater than 7.2 dBi and its radiation efficiency is around 90% over the overlapped BW.
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Related Researcher
- Park, Hyun Chang
- College of Engineering (Department of Electronics and Electrical Engineering)