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Monopole-Like and Boresight Pattern Reconfigurable Antenna

2013; IEEE Antennas & Propagation Society; Volume: 61; Issue: 12 Linguagem: Inglês

10.1109/tap.2013.2283926

1558-2221

Inseop Lim, Sungjoon Lim,

Advanced Antenna and Metasurface Technologies

A novel pattern reconfigurable antenna is proposed to achieve two different radiation patterns by controlling the bias voltage of switches. Initially, the proposed antenna operates as a top-loaded monopole antenna fed by a co-planar waveguide (CPW). When the slot from the CPW is disturbed by switching on PIN diodes, it operates as a slot antenna. Therefore, when the switch turns on, the maximum radiation intensity occurs at the normal to the aperture surface defined as the boresight direction, which is similar to a slot antenna. When the switch turns off, the maximum radiation intensity occurs at right angles to the boresight direction, which is similar to a monopole antenna. The pattern reconfigurable capability is successfully demonstrated at 2.3 GHz by full-wave simulation and measurement.