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Frequency selective metamaterial-inspired antenna for dual-frequency operation incorporating two switches (SWs) has been proposed. Length of radiating element is varied which provides easy frequency re-configurability at WiMAX (3.5–3.57 GHz) and WLAN (5–5.5 GHz). The proposed antenna offers impedance bandwidths of 13.6% (at 3.39 GHz) and 17.2% (at 5.05 GHz) with average peak gains of 1.49 dB and 1...
In this paper, a zeroth-order resonating circular patch antenna with triangular stub is proposed. The proposed antenna has an electrical size of 0.23λ0 × 0.13λ0 × 0.01λ0 with an impedance bandwidth (|S11| < −10 dB) of 21.4% (resonating frequency 2.8 GHz). Circuit values of proposed equivalent circuit have been extracted using advanced design system to plot dispersion diagram which shows zeroth...
In this paper, an ultra-wideband ring-shaped metamaterial antenna with modified phi-shaped split ring resonator has been proposed. The proposed antenna has a size of 35 mm × 37 mm × 1.6 mm and shows dual-band characteristics. The proposed metamaterial antenna has an impedance bandwidth of 14% (centered at 2.65 GHz) and 114.5% (centered at 7.25 GHz) for the first and second band respectively. Modified...
A compact CPW-Fed CRLH metamaterial antenna is designed and developed in this paper. The design is based on a symmetric single layer CPW-Fed structure in which signal patch is connected to the CPW ground planes by introducing a strip. Proposed antenna shows two modes at 1.70 GHz and 5.30 GHz respectively. In addition to that this antenna offers excellent dipolar and omnidirectional radiation pattern...
In this paper, a metamaterial-inspired dual-band antenna with modified complimentary split ring resonator and electromagnetic band gap loading is proposed. The newly proposed modified CSRR brings 11.4% miniaturization in area of antenna as compared to conventional CSRR. The proposed antenna has an electrical size of 0.175λ0 × 0.218λ0 × 0.014λ0 and shows dual-band characteristics. The proposed antenna...
In this paper a compact planar CPW-fed metamaterial antenna with closed ring resonator (CRR) has been proposed. It is observed that by employing CRR into the structure an extra band is found at 2.17 GHz (n = −1 mode) and therefore electrical size of the antenna is decreased significantly. CPW- feed is introduced to enhance the bandwidth and radiation efficiency of proposed antenna. This antenna is...
In this letter, a compact zeroth-order resonating wideband antenna with dual-band characteristics is designed using composite metamaterial (MTM). Such composite MTM consists of patch with series gap, meander line inductor, and a radial stub. The proposed structure offers compact size with radiating element dimensions of . The proposed...
In this paper, a compact CPW-fed complimentary half split ring resonator (CHSRR) antenna for WLAN is proposed. The proposed antenna shows compact size (due to ZOR) with dimensions 0.18λ0× 0.15λ0× 0.03λ0 at center frequency of 5.57 GHz. Impedance Bandwidth of 14% (S11 < −10 dB) from 5.17–5.95 GHz has been achieved with monopole-type radiation pattern in xz-plane and dipolar-type radiation pattern...
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