A compact ultra wideband antenna with WLAN (IEEE 802.11a) band rejection

• Main Authors: Jalil Y.E., Chakrabarty C.K., Kasi B.
• Other Authors: 55257996600
• Format: Conference Paper
• Published: 2023
• Subjects: frequency-notched; microstrip antenna; ultra wideband (UWB); Antenna feeders; Antennas; Broadband networks; Directional patterns (antenna); Frequency bands; Microstrip antennas; Standards; Band rejection; Gain characteristic; Narrowband systems; Radiating patches; Truncated ground plane; Ultra wide-band antennas; Ultrawideband systems; Ultra-wideband (UWB)

The problem of interference between ultra-wideband (UWB) system and other narrow band systems has been a major concern for a long time. This paper presents a compact UWB antenna that shows desirable band-notch and gain characteristics. The proposed antenna consists of an octagon-shaped patch with a truncated ground plane that is fed by a 50? microstrip line. The frequency notch characteristic is obtained by inserting two C-shape slots on the radiating patch. The proposed antenna is successfully designed and simulated showing good impedance matching and reasonable radiation patterns over a bandwidth of 2.8 to 11 GHz. Furthermore, the proposed antenna has a compact size of 26 � 32 mm2 while exhibiting the band rejection performance in the frequency band of 5.15 to 5.85 GHz. � 2012 IEEE.