We present an in depth look at the challenges involved in using analogue retrodirective arrays for satellite communications. The main technical issues surrounding the development of a retrodirective (self-steering) Satellite Communications (SATCOM) system are given and techniques for mitigating these issues provided. Detailed results are given for a prototype high performance circularly polarized retrodirective array architecture suitable for mounting on an un-stabilized mobile platform. The paper concludes with practical retrodirective L-band array results with the array used to acquire actual broadband satellite data signals from a commercial L-band satellite system. Received satellite signals as low as -130dBm at the antenna elements are tracked. Accurate self-tracking occurs over the azimuth range of up to +/- 40 degrees.
|Number of pages||8|
|Journal||IEEE Transactions on Microwave Theory and Techniques|
|Early online date||25 Mar 2016|
|Publication status||Published - May 2016|
- Antenna Array, phase locked loop, phased array
Buchanan, N. B., Fusco, V. F., & van der Vorst, M. (2016). SATCOM Retrodirective Array. IEEE Transactions on Microwave Theory and Techniques, 64(5), 1641-1621. https://doi.org/10.1109/TMTT.2016.2541121