Complementary Split Ring Resonator Based Triple Band Microstrip Antenna for WLAN/WiMAX Applications

Abstract

A new simple design of a triple-band microstrip antenna using metamaterial concept is presented in this paper. Multi-unit cell was the key of the multi resonance response that was obtained by etching two circular and one rectangular split ring resonator (SRR) unit cells in the ground plane of a conventional patch operating at 3.56 GHz. The circular unit cells are resonating at 5.6 GHz for the upper band of Wi-MAX, while the rectangular cell is designed to produce a resonance at 2.45 GHz for the lower band of WLAN. WiMAX's/WLAN's operating bands are covered by the triple resonances which are achieved by the proposed antenna with quite enhanced performance. A detailed parametric study of the placement for the metamaterial unit cells is introduced and the most suitable positions are chosen to be the place of the unit cells for enhanced performance. A good consistency between simulation and measurement confirms the ability of the proposed antenna to achieve an improved gain at the three different frequencies.

A multiband antenna loaded with metamaterial and slots for GPS/WLAN/WiMAX applications

“…Stable radiation characteristics, good impedance matching, and gain are observed when the antenna is fabricated and tested. The simulated and measured results infer that the proposed structure outperforms the traditional antennas studied in the literature …”

“…A practically feasible antenna should be compact in size, should offer good radiation characteristics, better gain, and good impedance matching. However, the antennas studied in the literature, lacks the aforementioned properties. The objective of this paper includes the design of a compact quad‐band practically feasible antenna with good gain and stable radiation characteristics.…”

“…6,7 In addition to this, metamaterials help in achieving miniaturization, enhancing filter performances, and gain. [8][9][10] The different metamaterial structures include complimentary split ring resonator (CSRR), 11 circular Split Ring Resonator (SRR), 12 single circular SRR, 13 rectangular SRR, 14 planar pattern, 15 transmission line (TL) based structure. 16 Based on the unique property of the metamaterial structures various multiband antenna has been developed.…”

“…16 Based on the unique property of the metamaterial structures various multiband antenna has been developed. [11][12][13][14][15][16] A practically feasible antenna should be compact in size, should offer good radiation characteristics, better gain, and good impedance matching. However, the antennas studied in the literature, [1][2][3][4][5][11][12][13][14][15][16] lacks the aforementioned properties.…”

An Improved Antenna Group Delay Measurement Method Using a Three-antenna Extrapolation Technique

“…Antenna performance is characterized by various parameters which can be obtained through measurements [2], [3]. In the past, antenna measurements always aimed at gain, pattern, efficiency and some other main parameters [4][5][6][7][8][9][10]. With the development of satellite navigation, remote sensing, modern communication, et al, antenna group delay (GD) is paid more and more attentions nowadays.…”