Super Wideband Miniaturized Compact Antenna Design With Quadruple Notched Band Characteristics

ABSTRACT A novel microstrip line‐fed super wideband antenna associated with quadruple notched band properties is demonstrated in this article. The antenna configuration is based on a partial ground back plane with a curved end and a decagon geometric patch. The physical volume of the proposed design is . Three split‐ring slots are etched onto the patch surface to produce three notched bands (3.65–4.6, 5.42–5.94, and 6.97–8 GHz). Additionally, a “T”‐shaped stub resonator placed beside the feed line introduces a fourth notched band at 9.47–10.85 GHz. The functional impedance bandwidth (VSWR ≤ 2) of the constructed antenna spans from 2.8 to 28 GHz exhibiting percentage bandwidth of 163%. The suggested antenna prototype is constructed and successfully measured using standard microwave measuring techniques and compared with simulated findings. The peak gain of the antenna is measured as 6.25 dBi and the gains of the four notched bands are found as −8.2, −5.4, −3.5 and −1.1 dBi, respectively. The developed antenna may be utilized for broadband wireless communication to mitigate C‐band satellite links, higher WLAN, X‐band satellite downlink communications, and amateur radio applications.