Ultra‐wideband square slot antenna with a novel diamond open‐ended microstrip feed

Abstract

A novel ultra‐wideband microstrip patch antenna is presented. The proposed antenna exhibits an impedance bandwidth of 127% over an ultra‐wideband frequency range from 2.9 to 13 GHz, which makes it an excellent candidate for UWB applications. Simulated results are compared with the fabricated antenna measured performance, which show good agreement. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 1075–1080, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24242

A Compact Band-Notched Slot Antenna for UWB Applications

“…However, there exist the difficulties of satisfying the antenna characteristics of wide impedance bandwidth, omnidirectional radiation pattern, and compact size [2]. Such antennas have been investigated and implemented with different feed-lines like microstrip [3][4][5], coplanar waveguide [6,7], etc. Furthermore, in order to avoid interfering with the existing wireless local area networks (WLAN) system, allocated from 5.15 to 5.825 GHz, UWB systems should require the additional band rejection filters.…”

Compact printed antenna with novel radiating element for UWB applications

“…Planar microstrip antennas [2,3,4,5,6] mostly use two types of feeding structures, i.e. a microstrip-line [2,3,4] or a coplanar waveguide [3,5,6].…”

“…a microstrip-line [2,3,4] or a coplanar waveguide [3,5,6]. However, the coplanar waveguide (CPW) feed-line can offer wide bandwidth and low radiation loss.…”

Very ultra-wideband printed CPW-fed slot antenna

“…A UWB antenna has to provide satisfactory characteristics over the entire FCC defined frequency band from 3.1-10.6 GHz, including return loss of less than 210 dB, omnidirectional radiation pattern, minimum dispersion in the received waveform etc. Although a serious limitation of microstrip antennas is their narrow impedance bandwidth, many printed antennas have been reported with ultra-wide impedance bandwidth to provide FCC defined characteristics in terms of microstrip slot antennas and microstrip antennas [2,3]. Slot antennas show wider impedance bandwidth, lower dispersion and higher radiation efficiency than microstrip antennas [4].…”

“…The measured radiation patterns show a nearly omnidirectional behaviour over the most fractional of the 3.1-10.6 GHz frequency band. Antenna structure and design: The radiator of the slot antennas strongly affects the antenna characteristics [3]. In this work the proposed antenna is a simple rectangular slot with a novel radiator and a coplanar waveguide (CPW) line, which feeds the antenna.…”