A compact ultra‐wideband receiving antenna for monitoring applications

Abstract

In this paper, a compact ultra-wideband receiving antenna is proposed. It consists of a top loaded planar monopole and a circular ground plane. This design combines various techniques such as the comb shaped top loading and the integrated lumped elements to effectively reduce the antenna size, while keeping a wide bandwidth and a reasonable realized gain. The proposed antenna operates across a wide frequency range from 20 to 8 GHz (for S 11 <À6 dB), occupies a compact volume of 500 Â 500 Â 340 mm 3 (0.033λ 0 Â 0.033 λ 0 Â 0.023 λ 0 at 20 MHz) and has a stable omnidirectional radiation pattern in azimuth plane from 20 to 6 GHz. Simulations and measurements are conducted to validate the antenna performance. It is demonstrated that this antenna is well suited to a variety of wideband radio frequency receivers for monitoring use.

Broadband Multiple Input Multiple Output antenna for sub‐6‐GHz 5G communications

“…However, it is required to realize the necessary impedance matching using shunt RL sections that are realized using chip resistors and inductors. The literature [27][28][29][30] has adopted lumped element loading to obtain bandwidth enhancement while simultaneously achieving size reduction. The lumped element loading provides a straightforward solution to improve the antenna bandwidth.…”

Compact planar ultra‐wideband pattern diversity antenna

“…Besides, the combination of the ultrawideband (UWB) and diversity technologies can enhance high data rates and high resolutions, which is critical for imaging, localization, radar, and multiple-inputmultiple-output (MIMO) applications. 15 Therefore, some research has been done on using low-profile printed UWB antennas as diversity antennas: both polarization diversity 16 and pattern diversity. 17,18 In ref.…”

“…[14], a switchable bandpass to bandstop frequency turnability antenna includes a double‐element E‐plane quasi Yagi‐Uda antenna with sum and difference radiation patterns for Cognitive Radio (CR) systems is presented. Besides, the combination of the ultra‐wideband (UWB) and diversity technologies can enhance high data rates and high resolutions, which is critical for imaging, localization, radar, and multiple‐input‐multiple‐output (MIMO) applications 15 . Therefore, some research has been done on using low‐profile printed UWB antennas as diversity antennas: both polarization diversity 16 and pattern diversity 17,18 .…”