A compact switched-beam array antenna for mobile satellite communications

摘要: This paper presents the design and development of a compact switched-beam array antenna for operation with Australian mobile satellite communications system. Mobilesat(TM). The is formed by eight aperture-coupled microstrip patch elements that are positioned on side truncated comb Two elements, facing satellite, activated using an eight-way two-ports-on radial switch. output ports switch incorporate 1-bit phase shifters A total 24 beams produced this beam-forming lit order to reduce manufacturing cost, inexpensive substrates low-cost UHF p-i-n diodes employed Further reduction in cast achieved eliminating coaxial connectors between network elements. Experimental results presented individual network, entire array. (C) 1999 John Wiley & Sons, Inc.