Vol. 118

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2022-02-21

A Circular Sector with an Inverted L Shaped Monopole Antenna for Tri-Band Applications

By Alka Khade, Mahadu Annarao Trimukhe, Shishir Digamber Jagtap, and Rajiv Kumar Gupta
Progress In Electromagnetics Research C, Vol. 118, 177-186, 2022
doi:10.2528/PIERC22010802

Abstract

In this paper, a quarter circular sector with an inverted L shaped monopole antenna for tri-band applications is proposed. The antenna is designed from a U shaped ultra-wideband (UWB) antenna. The number of higher-order modes, each with wide bandwidth, gets excited in a monopole, which electromagnetically couple to provide UWB. In the proposed tri-band antenna the electromagnetic coupling between higher-order modes is reduced by selectively removing the symmetrical portion and decreasing the thickness of the UWB radiator. An inverted L strip is added to a quarter circular sector, and a similarly shaped parasitic element is placed close to the radiator to achieve the desired tri-band. The antenna provides S11 ≤ -10 dB over 2.1-2.5 GHz, 5.0-5.6 GHz and 8.4-9.0 GHz which covers 3G, Wi-Fi, LTE, Bluetooth, WLAN and X- band applications. The antenna offers nearly omnidirectional radiation pattern in the lower band and directional radiation pattern in the other two bands, The prototype antenna is fabricated on a 0.147λ0×0.22λ0 FR4 substrate, where λ0 is the free-space wavelength corresponding to 2.1 GHz. The measured results agree with simulation ones.

Citation


Alka Khade, Mahadu Annarao Trimukhe, Shishir Digamber Jagtap, and Rajiv Kumar Gupta, "A Circular Sector with an Inverted L Shaped Monopole Antenna for Tri-Band Applications," Progress In Electromagnetics Research C, Vol. 118, 177-186, 2022.
doi:10.2528/PIERC22010802
http://jpier.org/PIERC/pier.php?paper=22010802

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