• Swathi G R
• Dr. Keerthi D S
• Dr. Murthi Mahadeva Naik G
• Dr. K C Deepika
• Dr. K B Santhosh Kumar

The purpose of a numerous effective methods for Spectrum provisioning control, Spectrum congestion is emerged as a significant problem. Ceiling popular frequencies, which are 700-megahertz frequency band to 3,000 megahertz and 2,400 megahertz to 6 GHz, interference is inevitably increasing in direct proportion to the number of emitters. A very compact four notches bandpass filter utilizing rectangular ring resonator structure with novel method to generate an ultra-wideband (UWB) bandpass filter (BPF). Initially, this method employs a stub-loaded rectangular ring resonator (SLRRR) based compact structure to develop a UWB bandpass filter. The compact sized (24.35x31.7 mm2) and Ground Plane with size 2.4 mm2 of X-axis,7.2 mm2 of Y-axis proposed filter is characterized by a wide passband extending from 3.3to 9.1GHz with low insertion loss of < -0.65 dB The operating mid correspond fractional Bandwidth is 80%, respectively. Structures are fabricated, measured, and compared with the obtained simulation outcomes. The resemblance between the compared results corroborates the applicability of such compact structure and developed based on the analysis.

UWB bandpass filter, Insertion loss, SLRRR, Compact size.

"DESIGN OF MICROWAVE PLANAR BANDPASS FILTER FOR APPLICATION IN WIRELESS COMMUNICATION ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.12, Issue 7, page no.a277-a283, July-2025, Available :http://www.jetir.org/papers/JETIR2507028.pdf

"DESIGN OF MICROWAVE PLANAR BANDPASS FILTER FOR APPLICATION IN WIRELESS COMMUNICATION ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.12, Issue 7, page no. ppa277-a283, July-2025, Available at : http://www.jetir.org/papers/JETIR2507028.pdf