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Four-port balanced antenna feeding network for switchable polarizations and stable Tx/Rx isolation characteristicsopen access
- Issue Date
- Jan-2014
- Keywords
- antenna feeding network; reconfigurable antenna; reconfigurable feeding network; Tx/Rx isolation
- Citation
- Microwave and Optical Technology Letters, v.56, no.1, pp 17 - 23
- Pages
- 7
- Journal Title
- Microwave and Optical Technology Letters
- Volume
- 56
- Number
- 1
- Start Page
- 17
- End Page
- 23
- ISSN
- 0895-2477
1098-2760
- Abstract
- A new four-port balanced antenna feeding network for switchable polarizations and high transmit/receive (Tx/Rx) isolation characteristics is presented. The proposed structure is configured by two switching mode hybrid matrices which consist of two 3-dB couplers and two SP4T switches, two directional couplers, and Wilkinson dividers. By controlling impedances of the switching mode hybrid matrices, different types of polarizations such as right-handed circular polarization, left-handed circular polarization, vertical polarization, and horizontal polarization can be generated with stable Tx/Rx isolation characteristics regardless of antenna impedance variations. © 2014 Wiley Periodicals, Inc.
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