Design, Simulation, and Experimental Study of Far-Field Beam-Forming Techniques Using Conformal Waveguide Arrays

作者：Carpenter C; Kumar B P^*; Branner G R

来源：Electromagnetics, 2011, 31(5): 315-336.

DOI：10.1080/02726343.2011.579760

• satellite
• antenna arrays
• multi-beam patterns
• conformal
• beam forming

Phased-array antennas have been employed for decades in numerous applications, such as radar, cellular communications, and satellite systems. Satellite links, for example, may require high-gain microwave beams with overall wide area coverage. Phased-array antennas for such an application can typically control position and beam width of individual sectoral patterns within the coverage region. This article presents an economical alternative in a conformal array antenna of open-ended rectangular waveguides, which can generate either multi-beam or single-beam patterns by switching control to different radiator configurations within the array structure. In the implementation to be presented, the conformal array property is realized by an axial shift of the array elements. This provides additional control over multi-beam coverage area and intensity taper. In this article, four array configurations are presented with experimental and simulated results that are shown to be in close agreement.

• 出版日期2011