Design of a Quasi-Isosceles Triangle Slot Antenna for UWB Applications

Abstract

A new microstrip slot antenna for UWB (Ultra Wideband) applications is designed. This structure is a quasi-triangle slot antenna fed by a single microstrip line with a fork-like tuning stub. Experiments are carried out to investigate its return loss, its radiation and its time domain behavior, which exhibit good radiation pattern and impedance bandwidth over the entire band of frequency. Time domain consideration also exhibits that this antenna can be used with short pulses.

Design of a Compact UWB Antenna with Triple Band-Notched Characteristics

“…The Federal Communication Commission (FCC) has prescribed 3.1 to 10.6 GHz for commercial ultra-wideband (UWB) communication systems [1]. Since then, several antennas for UWB application have been reported [2][3][4]. However, the bandwidth of the UWB system includes the frequency bands of 3.3-3.7 GHz (WiMAX band), 5.15-5.35 GHz (WLAN band), and 7.25-7.75 GHz (the downlink of Xband satellite communication systems), which may generate interference with UWB system.…”

A Semi-Circle-Shaped Aperture UWB Antenna With Triple Band-Notched Character

“…Thus, antenna-filtering technique may be one of the simplest, effective and inexpensive methods, and compact UWB antennas with band-notched characteristics to avoid the potential interference are desirable [5][6][7]. As a kind of compact omnidirectional, integrated UWB antenna, various printed wide slot antennas with different performance and structures have been developed [8][9][10]. In order to design slot antennas with band-notched function, one simple and effective way is to incorporate slots (known as half-wave resonant structures) in the antenna's tuning stub, such as U-shaped slot [11], H-shaped slot [12], C-shaped slot [13], etc..…”

A Novel Compact Ultra-Wideband (Uwb) Wide Slot Antenna With via Holes

“…Because of its attractive features such as wide bandwidth performance, easy fabrication and bidirectional radiation patterns, the wide slot antenna has become one of the most promising candidates for UWB antennas design [2][3][4][5][6][7][8][9][10][11]. Previously in [2], a rectangular wide slot with cross-shaped microstrip-line-fed structure achieves an impedance bandwidth of 98.6% with |S 11 | ≤ −10 dB.…”

“…In [5], a semicircular slot with a squarepatch feed and a triangular slot with a triangular-patch feed provide bandwidth of 120.0% and 110.0% respectively. Some other types of the microstrip wide slot antennas have been reported in [6][7][8][9][10][11].…”