Abstract
This paper presents a wideband pattern- and polarization-reconfigurable antenna based on bistable composite cylindrical shells. This antenna, which includes seven radiating metal strips, uses bistable anti-symmetric glass fiber-reinforced polymer (GFRP) composite cylindrical shells as the substrate to achieve reconfigurability without the need for redundant structures or semiconductor devices. This bistable GFRP substrate has two stable cylindrical configurations: extended structure and coiled-up structure. Therefore, by transforming the configuration, the radiation patterns of the proposed antenna are changed, and simultaneously, the polarization is switched between left-handed circular polarization (LHCP) and right-handed circular polarization (RHCP). A prototype of the proposed antenna is fabricated and measured. The measured results indicate that the antenna can operate in the frequency range from 2.3 to 3 GHz in the two configurations. The proposed antenna can be utilized as the payload of a satellite.
Highlights
With the rapid development of wireless communication technology, miniaturized multifunctional antennas have drawn tremendous attention
While axial ratio (AR) performance is mainly affected by R2-R5, it relies on changing the surface current distribution to vary the circularly polarized (CP) radiation field
Substrate is cured by the autoclave vacuum bag degassing method at a pressure of 0.2 MPa and a temperature of 130◦ for 3 h, and the metal radiators are attached to the surface of the substrate
Summary
With the rapid development of wireless communication technology, miniaturized multifunctional antennas have drawn tremendous attention. Reference [16] proposes a pattern-reconfigurable quasi-Yagi antenna based on GFRP composite laminates, and the maximum radiation direction is changed by only 30◦. The coiled-up structure shown in Fig. 2(c) is termed configuration II, and VOLUME 8, 2020
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