An optimum ultra-wideband microstrip filter

2005 ◽  
Vol 47 (3) ◽  
pp. 230-233 ◽  
Author(s):  
Jia-Sheng Hong ◽  
Hussein Shaman
Keyword(s):  
Ultra Wideband ◽  
Microstrip Filter

A microstrip filter utilized in ultra-wideband antennas

2004 ◽  
Vol 41 (4) ◽  
pp. 248-251 ◽  
Author(s):  
Chien-Jen Wang ◽  
Chia-Horng Lin ◽  
Jin-Wei Wu
Keyword(s):  
Ultra Wideband ◽  
Wideband Antennas ◽  
Microstrip Filter

Switchable square ring bandpass to bandstop filter for ultra-wideband applications

2015 ◽  
Vol 9 (1) ◽  
pp. 51-60
Author(s):  
Mushtaq Alqaisy ◽  
Chandan K. Chakrabraty ◽  
Jawad K. Ali ◽  
Adam Reda Alhawari ◽  
Tale Saeidi
Keyword(s):  
Computer Simulation ◽  
Radio Frequency ◽  
Ultra Wideband ◽  
Ring Resonators ◽  
Microstrip Filter ◽  
Filter Structure ◽  
Closed Ring ◽  
Effective Cost ◽  
Bandstop Filter ◽  
Good Agreement

In this manuscript, serial-shunt of square ring resonators with step-impedance open circuited stub resonators to produce a new on-off switchable bandpass to bandstop response in the same ultra-wideband microstrip filter structure is proposed. The closed ring of series-shunt square ring resonators with a combine stubs are introduced to excite the bandpass response while bandstop characteristic excited when gaps are embedded in the corners of the square ring resonators. The main advantage of this microstrip filter is its capability to switch from bandpass-to-bandstop operation using open-short gap, respectively. A microwave simulator is utilized to show the switchable case by replacing Skyworks radio frequency diodes (RF-PIN) instead of those gaps. The entire filter models have been simulated using the computer simulation technology (CST) Microwave Studio. The computed results for the proposed filters were compared with the measured results of the both prototype structures (bandpass- and bandstop-filter). The codes also showed good agreement between them. Other advantages include being small in size, and low in effective cost.

scholarly journals Triple Notches Bandstop Microstrip Filter Based on Archimedean Spiral Electromagnetic Bandgap Structure

Electronics ◽  
2019 ◽  
Vol 8 (9) ◽  
pp. 964 ◽  
Author(s):  
Xuemei Zheng ◽  
Tao Jiang
Keyword(s):  
Lumped Parameter Model ◽  
Ultra Wideband ◽  
Design System ◽  
Electromagnetic Bandgap ◽  
Archimedean Spiral ◽  
Microstrip Filter ◽  
High Frequency Structure Simulator ◽  
Lumped Parameter ◽  
Microstrip Filters ◽  
Electromagnetic Bandgap Structure

With the development of artificial electromagnetic structures, defective grounding structures (DGS), defective microstrip structures (DMS), and electromagnetic bandgap (EBG) have been widely used in the design of microstrip filters. In this paper, a triple notches ultra wideband bandstop microstrip filter based on Archimedean spiral electromagnetic bandgap structure (ASEBG) structure is proposed. Firstly, the equivalent circuit of ASEBG is analyzed, and L and C values are extracted by using Advanced Design System (ADS). Secondly, the correctness of the lumped parameter model is verified by comparing the High Frequency Structure Simulator (HFSS) simulation results with the measured results. Finally, the influence of ASEBG structure parameters on resonant performance is analyzed by HFSS simulation, and the filter parameters are further optimized. By coupling ASEBG structure to existing double notch microstrip filters, a triple notches ultra wideband bandstop microstrip filter is realized. This method can also be used in the design of other microstrip devices with stopband characteristics. The three bandgap center frequencies of the proposed triple notches ultra wideband bandstop microstrip filter are 3.5, 5.2, and 7.4 GHz, respectively. The corresponding maximum attenuation of the three stopbands is 33.6, 24.8, and 21.7 dB, respectively.

Frequency-reconfigurable microstrip filter with dual-mode resonators using RF PIN diodes and DGS

2014 ◽  
Vol 7 (6) ◽  
pp. 661-669 ◽  
Author(s):  
Hesham A. Mohamed ◽  
Heba B. El-Shaarawy ◽  
Esmat A.F. Abdallah ◽  
Hadia M. El-Hennawy
Keyword(s):  
Bandpass Filter ◽  
Low Frequency ◽  
Ultra Wideband ◽  
Defected Ground Structure ◽  
Ground Structure ◽  
Dual Mode ◽  
Microstrip Resonator ◽  
Pin Diodes ◽  
Microstrip Filter ◽  
Structure Pattern

This work presents a novel frequency miniaturized reconfigurable dual-mode stub-loaded resonator switchable from bandpass filter to single/double-notched bandnotch filter. The proposed filter topology employs RF PIN diodes as the switching device. Based on the odd- and even-mode equivalent circuits, the resonant characteristics of the proposed microstrip resonator are investigated. The defected ground structure pattern enhanced the performance; the 3-dB bandwidth reached 63%, with insertion loss of −0.5 dB. There was great sharpness of 55 dB in the low-frequency edge (from 1.7982 to 1.8466 GHz) and 33 dB in the high-frequency edge (from 3.4329 to 3.4995 GHz). The frequency-reconfigurable microstrip filter has been designed, fabricated, and measured for application in narrow band and ultra-wideband.

Ultra-Wideband Planar Monopole Antenna with WiMAX and WLAN Band Rejection Characteristics

2016 ◽  
Vol 6 (1) ◽  
pp. 44
Author(s):  
Neelaveni Ammal Murugan ◽  
Ramachandran Balasubramanian ◽  
Hanumantha Rao Patnam
Keyword(s):  
Monopole Antenna ◽  
Ultra Wideband ◽  
Planar Monopole Antenna

Design of a Bell-Shaped Ultra Wideband Antenna for Indoor Localization System

2015 ◽  
Vol 5 (6) ◽  
pp. 323 ◽  
Author(s):  
Nadia Ghariani ◽  
Mohamed Salah Karoui ◽  
Mondher Chaoui ◽  
Mongi Lahiani ◽  
Hamadi Ghariani
Keyword(s):  
Indoor Localization ◽  
Ultra Wideband ◽  
Localization System ◽  
Wideband Antenna

Baseband Receiver Design for the MBOA Ultra Wideband Wireless Personal Area Networks

2009 ◽  
Vol E92-B (1) ◽  
pp. 143-149
Author(s):  
Sen-Hung WANG ◽  
Chih-Peng LI ◽  
Chao-Tang YU ◽  
Jian-Ming HUANG ◽  
Chua-Chin WANG
Keyword(s):  
Ultra Wideband ◽  
Personal Area Networks ◽  
Receiver Design ◽  
Wireless Personal Area Networks ◽  
Baseband Receiver
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