Abstract
The ultrawideband (UWB) planar antenna is designed as a circular metallic patch fed by a coplanar waveguide (CPW). This antenna provides the impedance bandwidth of the wideband response from 2.5 to 12 GHz. To achieve the notched characteristics at desirable frequencies, the electric ring resonator (ERR) incorporated into the CPW feedline is proposed for use in the planar configuration of the UWB antenna. The notched frequency band is controlled by dimensions of the ERR structure. The single-notched band can be obtained by placing a single ERR beneath the CPW structure. For implementation of the multinotch band, a modified multimode structure of the ERR is examined. Reconfigurability of the first notched band is provided by using a digital variable capacitor (DVC) instead of ERR's quasi-lumped capacitance. The results of simulations and measurements are in a good agreement.
Original language | English |
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Pages (from-to) | 1597-1600 |
Number of pages | 4 |
Journal | IEEE Antennas and Wireless Propagation Letters |
Volume | 16 |
DOIs | |
Publication status | Published - 16 Jan 2017 |
Keywords
- Band notch
- dual-band notched
- dual-mode ERR (dual-ERR)
- electric ring resonator (ERR)
- monopole
- multimode ERR
- reconfigurability
- tri-mode ERR (tri-ERR)
- triple-band notched
- ultrawideband (UWB) antenna
ASJC Scopus subject areas
- Electrical and Electronic Engineering