Compact Dual Band-Notched Uwb Antenna With Parasitic Micro-Strip Lines and T-Shape Stub

Abstract

Abstract-In this study, a novel dual band-notched ultra-wideband (UWB) antenna has been proposed and discussed. The proposed antenna is fed by a micro-strip line and in the square-etched radiation patch a T-shape parasitic stub is attached. On the other hand, a pair of parasitic parallel micro-strip lines are also added on the ground plane, one of which is shorted to the radiation patch by a short-pin through dielectric substrate. The two parasitic units are to achieve bandnotched characteristics at 3.3-3.7 GHz and 5.15-5.85 GHz, respectively. In order to realize impedance matching over the ultra-wideband, two arc-shape cuts are made symmetrically at the junction of feed-line and radiation patch. The simulated and measured results, including return loss, radiation pattern, group-delay and peak gains are in good agreement with theory analysis which validates our design concept.

Design of Compact UWB Slotted Hexagonal Monopole Antenna with 3.5/5.5 GHz Dual Band Rejection

“…Here U-shape slots on the patch and L-shape slot on the ground have produced band notch effect for WLAN and WiMAX applications. Similar notch properties have been reported in the articles [2][3][4][5][6][7][8][9][10][11][12] by etching different types of slots, the addition of stubs, parasitic elements, defected ground structure, modified feed line, EBG structure etc. In [2], a T-shape stubs and a pair of U-shaped parasitic elements have been introduced to achieve dual notched band.…”

Band-Notched Uwb Monopole Antenna Design With Novel Feed for Taper Rectangular Radiating Patch

“…11(a), the lower notch band for different frequencies can be achieved. By using L 1 = 4 mm, the band of 3-4 GHz can be rejected as reported in previous researches [11]. The aim is to design antenna that covers WiMAX band and rejects unnecessary band.…”

“…Monopole antennas with microstrip feed line are widely used in designing UWB antenna because of low profile, low cost, light weight, easy fabrication, designing in desirable shape and integration with printed circuit boards. They also have UWB impedance matching (more than 100%) [11]. Various types of microstrip circular and elliptical patches have been considered.…”

Ultra‐wideband tapered patch antenna with fractal slots for dual notch application

“…Utilizing filters along the feed‐line of the antenna, is a traditional way for reducing the interference between UWB system and other communication systems, such as local area network and WiMAX, but in the portable systems, we need more compact and low cost systems, so it is desirable for us to design antenna with rejections in antenna characteristic at these frequencies .…”