IEEE transactions on antennas and propagation, 2013-03, Vol.61 (3), p.1475-1479
2013
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Details
- Autor(en) / Beteiligte
- Titel
- Broadband Circularly Polarized Beam-Steering Antenna Array
- Ist Teil von
- IEEE transactions on antennas and propagation, 2013-03, Vol.61 (3), p.1475-1479
- Ort / Verlag
- New York, NY: IEEE
- Erscheinungsjahr
- 2013
- Quelle
- IEEE Xplore
- Beschreibungen/Notizen
- A wideband circular polarized (CP) switched-beam patch antenna array is presented in this communication. The switched-beam system consists of four two-section branch-line couplers, two wideband 45 phase shifters and 1 × 4 proximity-coupled L-probe feeding CP microstrip patch antenna array. With such an arrangement, the proposed array can obtain a wide axial ratio (AR) bandwidth than that of conventional switched-beam CP antenna array. Measured results showed this array has an impedance bandwidth over a frequency range of 4.04-5.78 GHz (~36%) for |S 11 | <; -10 dB and AR bandwidth from 4.3 to 5.75 GHz (~29%) for AR <; 3dB when the main beam of array is scanned to different four directions.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 0018-926XeISSN: 1558-2221DOI: 10.1109/TAP.2012.2230235Titel-ID: cdi_crossref_primary_10_1109_TAP_2012_2230235
- Format
- –
- Schlagworte
- Antenna array, Antenna arrays, Antenna measurements, Antennas, Applied sciences, Arrays, Bandwidth, beam steering, butler matrix, Circuit properties, circular polarization, Electric, optical and optoelectronic circuits, Electronics, Exact sciences and technology, Frequency measurement, Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits, Radiocommunications, rotation technique, Telecommunications, Telecommunications and information theory, wideband antennas