Design of a Modified L-shaped bandstop filter for UWB applications

Nizam, Mohammad; Soh, Ping Jack; Suhaizal, A.H.M

doi:10.1109/imoc.2009.5427606

Cited by 9 publications

(3 citation statements)

References 7 publications

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“…Since UWB filters cover a wide frequency band, band-stop filters are utilized to prevent interference between UWB systems and other wireless systems. 14 Band-stop filters based on SSPPs have been studied in many works. [15][16][17][18][19][20][21] In most of these works, resonant structures are employed to realize the stopband.…”

Section: Introductionmentioning

confidence: 99%

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A band‐stop filter based on spoof surface plasmon polaritons using complementary split‐ring resonators

Homayoon

Heidari

2022

Int J RF Mic Comp-Aid Eng

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In this paper, a controllable band‐stop filter based on spoof surface plasmon polaritons (SSPPs) is presented using complementary split‐ring resonators (CSRRs) for ultra‐wideband (UWB) applications. Four CSRRs are inserted on the ground plane to achieve the required band rejection characteristics. The filter cutoff frequency is controlled by changing the depth of the SSPP grooves. Frequency and bandwidth of the stopband are controlled by adjusting the geometric parameters and position of the CSRRs, respectively. The Control process of the stopband is independent of the filter cutoff frequency, so adjusting the stopband does not change the cutoff frequency. Two prototypes of the proposed filter with different CSRR diameters are fabricated. The measured 20 dB rejection bandwidth for the prototypes with the CSRR diameters of 3.2 and 4 mm are 10.5–11.2 and 7.8–8.6 GHz, respectively. Measured cutoff frequency is about 13.1 GHz for both fabricated filters, which indicates that stopband control does not change the cutoff frequency. Simulation and measurement results show excellent rejection performance, so the proposed filter can be used for UWB applications.

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Section: Introductionmentioning

confidence: 99%

“…Ultra‐wideband (UWB) filters play an essential role in UWB wireless communication systems. Since UWB filters cover a wide frequency band, band‐stop filters are utilized to prevent interference between UWB systems and other wireless systems 14 . Band‐stop filters based on SSPPs have been studied in many works 15–21 .…”

Section: Introductionmentioning

confidence: 99%

A band‐stop filter based on spoof surface plasmon polaritons using complementary split‐ring resonators

Homayoon

Heidari

2022

Int J RF Mic Comp-Aid Eng

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“…Ultra wideband (UWB) system has dozens of advantages for both academia and industry such as low power, high speed communication system and high precision ranging [4]. A number of the research wideband BPFs have been reported based on different methods and design methodologies from [2][3][4][5][6][7][8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Tunable notch response for ultra wide-band bandpass filter

Bruster

Ruslan

Zakaria

et al. 2015

2015 IEEE International Conference on Control System, Computing and Engineering (ICCSCE)

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A design of ultra wide-band microstrip bandpass filter with tunable notch response of wireless communication system is presented in this paper. The five order bandpass filter is designed using optimum distributed highpass integrated with Defected Microstrip Structure (DMS). The bandpass filter was designed at wideband frequency from 3.1GHz to 10.6GHz. The insertion loss and return loss of this project is set to better than 0.5dB and 20dB respectively. The DMS is implemented in this design in order to remove undesired frequency in wireless communication system. The pin diode is added to act as a switch to tuning the notch response. When the pin diode off, the notch response produce a sharp response at 5.906GHz (WLAN). When the pin diode on, the notch response is removed from the passband and provide full UWB passband. This design is simulated by ADS software and using Roger Duroid 4350B with a dielectric constant of 3.48, substrate thickness 0.508mm and loss tangent 0.0019.

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