Square Patch Antenna with Switchable Polarization using Spur-line and PIN Diode

An orthogonal linear polarization switchable slot-ring array antenna using an RF-MEMS switch is newly proposed and its characteristics are experimentally investigated. The proposed array antenna consists of a dual-polarized slotring array antenna and an RF-MEMS switch (OMRON, 2SMES-01) which has high isolation and low insertion loss characteristics. This array antenna can accurately switch ±45deg. orthogonal linear polarizations due to the characteristics of the RF-MEMS switch. Two layers of Teflon glass fiber substrate with the relative dielectric constant r of 2.15 and the thickness of 0.8×2 mm is used. In the measurement, ±45-deg. linear polarization switching and excellent cross-polarization suppression are obtained. Thus, the RF-MEMS switch is suitable for polarization switchable array antennas. The array antenna using an RF-MEMS switch is very promising in a wide variety of wireless application areas, such as radar systems and various kinds of RF sensors.

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Circular polarization switchable single layer microstrip array antenna

Ushijima

Nishiyama

Toyoda

et al. 2012

Proceedings of the 2012 IEEE International Symposium on Antennas and Propagation

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Square Patch Antenna with Switchable Polarization using Spur-line and PIN Diode

Cited by 8 publications

References 7 publications

4-Port quadri-polarization diversity antenna with a novel feeding network

4-Port quadri-polarization diversity antenna with a novel feeding network

Orthogonal linear polarization switchable slot-ring array antenna using RF-MEMS switch

Circular polarization switchable single layer microstrip array antenna

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