High efficiency and dual polarized array antenna for satellite-communication application
In this paper, we describe a flat plate array for the satellite communication receiver, with small aperture, high efficiency and low cross polarization levels. The radiating element used is circular waveguide which is probe-fed using a stripline distribution networks providing uniform excitations to the 4×4 array. The networks are placed one behind the other for dual polarized purposes. The array is composed of 2×1 subarrays. The overall array thickness is about 1λ (λ is the wavelength of the center frequency), and the array aperture is about 3.2λ. Simulated results on a Ku-band prototype are discussed. The bandwidth (VSWR below 2.0) is about 500MHz, cross-polarized radiation from both ports is below-35dB, the isolation between the ports is below-25dB, and the gain of the 4×4 array is about 20dBl Simulated efficiency is about 75%(including the stripline feed networks).
Liu Ningmin
Space Star Technology Co., LTD
国际会议
International Conference on Space Information Technology 2009(2009年第三届空间信息技术国际会议)
北京
英文
1-5
2009-11-26（万方平台首次上网日期，不代表论文的发表时间）