This paper presents a novel compact dual-polarized antenna system for S-band satellite digital broadcasting receivers. The demonstrated antenna system consists of a low form factor dual-polarized antenna pair and two-stage low-noise amplifiers (LNAs) integrated with each antenna. One antenna is a low-profile annular ring patch antenna having a 90° phase-delay element for circular polarization (CP) and the other antenna is a reactively-loaded monopole antenna for linear polarization (LP). Both antennas operate in the same frequency range, from 2.320 to 2.345 GHz, while providing different polarizations to take advantage of the polarization diversity. Switches are used to select the mode (polarization) of operation. This ensures that appropriate dc bias is supplied to the operating LNA to process the received signal while no power is consumed by the idle LNA. The measured gains of the antenna system are 31.3 and 21.9 dBi for the CP and LP modes, respectively.
|Number of pages||7|
|Journal||IEEE Transactions on Microwave Theory and Techniques|
|Publication status||Published - 2006 Apr|
Bibliographical noteFunding Information:
Manuscript received October 2, 2005; revised January 10, 2006. This work was supported by the Yonsei University Research Fund of 2000 and by the Acti-pass Company Ltd. Y.-P. Hong, J.-M. Kim, Y. Lee, and J.-G. Yook are with the Department of Electrical and Electronic Engineering, Yonsei University, Seoul 120-749, Korea (e-mail: firstname.lastname@example.org; email@example.com). S.-C. Jeong, D.-H. Kim, and M.-H. Choi are with the Actipass Company Ltd., Yongin 449-906, Korea. Digital Object Identifier 10.1109/TMTT.2006.871944 Fig. 1. Combined dual-polarized antenna pair structure. Substrate is not shown. Also shown is the side view.
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Electrical and Electronic Engineering