Abstract
In this paper, a new printed filtering antenna with selectivity enhancement is presented. Based on the co-design approach, the printed meander-line antenna and a quarter-wavelength resonator are used and integrated to be the filtering antenna. Here, an antenna performs not only a radiator but also the last resonator of the bandpass filter. A new structure of the quarter-wavelength resonator is also proposed, which can provide a shunt resonator with high capacitance and introduce two extra transmission zeros for selectivity enhancement. According to the filter specifications, a design procedure is depicted in detail. One example of a 2.45 GHz two-pole filtering antenna is described based on the second-order Chebyshev bandpass filter with 0.1 dB equal-ripple response. Furthermore, the proposed structure supply good filter skirt selectivity. The measured results, including the return loss and antenna gain versus frequency, have good agreement with the designed one.
| Original language | English |
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| Pages | 747-750 |
| Number of pages | 4 |
| DOIs | |
| State | Published - 29 Sep 2009 |
| Event | 37th European Microwave Conference - Rome, Italy Duration: 29 Sep 2009 → 1 Oct 2009 |
Conference
| Conference | 37th European Microwave Conference |
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| Country/Territory | Italy |
| City | Rome |
| Period | 29/09/09 → 1/10/09 |