Printed monopole antenna with tapered feed line, feed region and patch for super wideband applications

Abstract

A novel and compact super wideband (SWB) exponentially tapered feed region and patch printed monopole antenna is proposed. This antenna is fed by a 50-Ω triangular tapered feed line. The antenna operates over a bandwidth of 2.5-80 GHz with a return loss of 10 dB or more. The dimensions of the proposed antenna are 40 × 30 × 1.6 mm 3. An exponential curve is employed in the feed region and a triangular tapered feed line is used. The ground plane feed gap is optimised to 1.3 mm. The proposed tapered monopole antenna has demonstrated an ultra-large bandwidth with satisfactory radiation properties. Two particular antennas are examined, one with a rectangular feed line and another with a triangular tapered feed line. The performance of the antenna in frequency domain is investigated, and a good agreement is achieved between the simulation and experimental results. In addition, the time domain characteristics of the proposed antenna are evaluated experimentally. This antenna can be used in ultra-wideband or SWB applications.

Compact design of trapezoid shape monopole antenna for SWB application

“…The SWB antennas have been reported in Refs. to overcome these issues of low‐frequency BW, BDR, fractional BW, and less electrical dimensions. The major problem in the design of such SWB antennas is the compactness with the extremely wideband operation.…”

“…The monopole antenna with the larger electrical dimension of 0.33λ × 0.25λ is also investigated in Ref. and it resonates from 2.50 GHz to 80 GHz. In Ref.…”

Circular base loaded modified rectangular monopole radiator for super wideband application

“…Presently, several researches are going on super wideband antennas in terms of lesser electrical dimensions and high bandwidth dimension ratio . A monopole antenna for SWB applications has been proposed in Ref.…”

“…A compact antenna with operating range of 2.5–80 GHz has been designed in Ref. but the antenna structure is not suitable for wireless applications such as Bluetooth, GPS, and GSM. Yeo and Lee proposed dual sectorial loop radiator which is electromagnetically coupled and provides super wide bandwidth (1–19.4 GHz).…”

Design and Fabrication of a Novel Quadruple-Band Monopole Antenna Using a U-DGS and Open-Loop-Ring Resonators

“…In [4,5], the antenna produced four bands at 4.64, 5.04, 5.62 and 6.22 GHz. In addition, the antenna in [6][7][8][9][10][11][12][13][14][15][16][17][18] can generate four bands at 2.8, 4, 5.4 and 6.2 GHz to cover WLAN/WiMAX. However, none of these antennas can satisfy the C and X bands for mobile and satellite applications.…”