Development of an Elliptical Annular Ring Microstrip Antenna With Sine Wave Periphery

Abstract

Abstract-We have investigated elliptical annular ring microstrip antennas having a sine wave periphery both theoretically and experimentally. The proposed antenna gives a good circular polarization at the center frequency of 1.285 GHz, with measured 3 dB axial ratio bandwidth of about 0.73% (9.5 MHz) and impedance bandwidth of about 1.7% (22.0 MHz). Input and radiation characteristics are also examined for different sine wave amplitudes applied to the periphery of elliptical ring patch antenna.

Development of Circularly Polarized Array Antenna for Synthetic Aperture Radar Sensor Installed on Uav

“…As compared with conventional microwave antennas, a microstrip antenna has additional advantages such as a compact size, light weight, conformability to surfaces of substrates, low cost, and easier integration with other circuits and versatility [6]. In previous works, several single element CP antennas have been fabricated in MRSL [7][8][9]. For CP-SAR applications, an array configuration must be adopted to satisfy the requirement of the system.…”

Wideband Cavity Back Antenna for Signal Intelligence

“…또, 급전선과 패치사이에 효율적인 커플링(coupling) 에너지를 전달하 는 근접결합 마이크로스트립 패치안테나(PCMA: Proximity Coupled Microstrip patch Antenna)도 제안되었다 [15] . 좁은 을 직선구조가 아닌 사인파(sinusoidal) 구조로 형성하여 광대역 특성을 구현하였으며 [16], [17] , 다음과 같은 수식을 통해 구하였다.…”