Filtering Antenna with High Selectivity Using Multiple Coupling Paths from Source/Load to Resonators
Related Research Unit(s)
|Journal / Publication||IEEE Transactions on Antennas and Propagation|
|Online published||23 May 2018|
|Publication status||Published - Aug 2018|
|Link to Scopus||https://www.scopus.com/record/display.uri?eid=2-s2.0-85047643819&origin=recordpage|
This paper presents a filtering antenna with high selectivity using multiple coupling path from source/load to resonators. The high selectivity of the filtering antenna’s boresight gain response is achieved by a novel coupling scheme, which induces additional coupling between source/load and non-adjacent resonators to construct cross-coupling paths. Thanks to the extra cross-coupling paths, the filtering antenna can generate maximum of N radiation nulls with N resonators. Besides, resonator using a combination of open-ended stub and short-ended stub is adopted to construct this novel coupling scheme more easily. For demonstration, a three-order filtering stacked patch antenna with a center frequency of 2.3 GHz and fractional bandwidth of 15.2% is fabricated. Two independently controllable radiation nulls are located at 1.97GHz and 2.61 GHz. Unidirectional radiation patterns have been achieved with cross-polarization lower than -20 dB and back lobes lower than -18 dB.
- Antennas, Band-pass filters, Couplings, Filtering antenna, multiple coupling paths, patch antenna, quasi-elliptic boresight gain response, radiation nulls, Resonant frequency, Resonator filters, Resonators
IEEE Transactions on Antennas and Propagation, Vol. 66, No. 8, 08.2018, p. 4320-4325.
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Zhang, B & Xue, Q 2018, 'Filtering Antenna with High Selectivity Using Multiple Coupling Paths from Source/Load to Resonators', IEEE Transactions on Antennas and Propagation, vol. 66, no. 8, pp. 4320-4325. https://doi.org/10.1109/TAP.2018.2839968
Zhang B, Xue Q. Filtering Antenna with High Selectivity Using Multiple Coupling Paths from Source/Load to Resonators. IEEE Transactions on Antennas and Propagation. 2018 Aug;66(8):4320-4325. Epub 2018 May 23. doi: 10.1109/TAP.2018.2839968