Abstract
A compact triple band antenna with stacked T-shaped strips inside a rectangular ring monopole has been proposed. This novel structure with a slot in the defected ground achieves triple band opration i.e. 2.47–2.77 GHz, 3.3–3.7 GHz and 5.10–6.62 GHz. These bands find application in important wireless communication standards like WiMAX (3.3–3.8 GHz, and 5.25–5.85 GHz, WLAN (2.4 G-2.5 GHz, 5.1–5.3 GHz, and 5.72–5.85 GHz). The antenna is printed on a FR-4 substrate with an overall dimension of 33 times 17 times 1.6 ;{text{mm}}^{3}. An impedance bandwidth of 11% (2.47–2.77 GHz), 11% (3.3–3.7 GHz) and 25% (5.10–6.62 GHz) is obtained. A good conjunction between the simulated and measured results is inferred from the antenna design analysis.
Highlights
Compact printed monopole antennas with multiband operation is gaining attention as a result of the tremendous development of compact devices for wireless applications [1, 2]
It can be inferred from the Stacked T‐Shaped Strips Compact Antenna for WLAN and WiMAX
It is observed from figure that at 2.5 GHz, the current concentrates at the peripheral ring
Summary
Compact printed monopole antennas with multiband operation is gaining attention as a result of the tremendous development of compact devices for wireless applications [1, 2]. Two self similar ring radiator was designed in [10] for achieving triple band operation with a dimension of 38 × 25 mm. Two self similar ring radiator was designed in [10] for achieving triple band operation with a dimension of 38 × 25 mm2 This antenna size is large for compact devices. Li et al [11] proposed a rectangular ring monopole antenna exhibiting triple band operation is designed using L-strips and inverted T-shaped stubs. Li et al [15] proposed a triple band antenna that satisfies WLAN and WiMAX standards by employing fork shaped strips within a rectangular ring. A compact tri-band antenna of 33 × 17 mm dimensions with four T-shaped strips stacked one above another inside a rectangular ring monopole is proposed.
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