Abstract
This paper presents the design and development of a compact switched-beam array antenna for operation with the Australian mobile satellite communications system. Mobilesat. The antenna is formed by eight aperture-coupled microstrip patch elements that are positioned on the side of a truncated cone. Two elements, facing the satellite, are activated using an eight-way two-ports-on radial switch. The output ports of the radial switch incorporate 1-bit phase shifters. A total of 24 beams are produced using this beam-forming system. In order to reduce the manufacturing cost, inexpensive substrates and low-cost UHF p-i-n diodes are employed. Further reduction in cost is achieved by eliminating coaxial connectors between the beam-forming network and the antenna elements. Experimental results are presented for the individual antenna elements, the beam-forming network, and the entire switched-beam array.
| Original language | English |
|---|---|
| Pages (from-to) | 186-191 |
| Number of pages | 6 |
| Journal | Microwave and Optical Technology Letters |
| Volume | 21 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 5 May 1999 |
| Externally published | Yes |
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