29 April 2009 Low-profile and high-efficiency probe-fed patch antenna array at S-band using an air dielectric for radar applications
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Abstract
An S-Band, half-wave length, probed-fed, two-patch (uniformly linear array 2 x 1 configuration) array antenna is presented. The array was constructed using an air dielectric between the patch and ground plane. The two-metal patches have coaxial feeds with type N (or HN) connectors and are supported by two metal posts positioned for bandwidth enhancement. In addition, these patches are separated at prescribed distance and locations for obtaining electrical performance in terms of antenna pattern and gain. The array can produce a maximum achievable gain of 11.5 dBi with broad azimuthal angle. The antenna's architecture is low profile and suitable for platform integration such as airborne as well as ground radar systems. The design is unique, reproducible, and affordable for manufacturing a low cost radar system. The paper will present the design of the antenna, experimental data, and its implementation.
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Canh Ly, Canh Ly, } "Low-profile and high-efficiency probe-fed patch antenna array at S-band using an air dielectric for radar applications", Proc. SPIE 7308, Radar Sensor Technology XIII, 73080P (29 April 2009); doi: 10.1117/12.821127; https://doi.org/10.1117/12.821127
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