Compact microstrip bandpass filter with tunable notch

Silas Christensen; Vitaliy Zhurbenko; Tom Keinicke Johansen

doi:10.1109/MIKON.2014.6899837

Compact microstrip bandpass filter with tunable notch

Silas Christensen, Vitaliy Zhurbenko, Tom Keinicke Johansen

Technical University of Denmark

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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Abstract

Two different designs combining a bandpass and a notch filter are developed to operate in the receiving band from 350–470 MHz. The bandpass filter is designed from a simple structure, by use of only four short circuited stubs and a half wavelength transmission line connecting the stubs. The tunable notch filter ensures an attenuation level of 19.3 dB to 27.3 dB in the frequency range from 360–480 MHz. The measured passband ripple of the combined filter is less than 0.5 dB, while the insertion loss for the simplest design is less than 1.7 dB only 10 MHz from the notch frequency. Even though the wavelength on the selected substrate (εr = 3.55) is approximately 45 cm, the outer dimensions of the final filter only measure 10×10 cm².

Original language	English
Title of host publication	Proceedings of 2014 20th International Conference on Microwaves, Radar, and Wireless Communications
Number of pages	4
Publisher	IEEE
Publication date	2014
ISBN (Print)	9786176075530
DOIs	https://doi.org/10.1109/MIKON.2014.6899837
Publication status	Published - 2014
Event	20th International Conference on Microwaves, Radar, and Wireless Communications - Mercure Hotel, Gdansk, Poland Duration: 16 Jun 2014 → 18 Jun 2014 Conference number: 20

Conference

Conference	20th International Conference on Microwaves, Radar, and Wireless Communications
Number	20
Location	Mercure Hotel
Country/Territory	Poland
City	Gdansk
Period	16/06/2014 → 18/06/2014

Keywords

Aerospace
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Signal Processing and Analysis
Attenuation
Band-pass filters
Bandwidth
Capacitors
Couplings
Microstrip
Passband

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10.1109/MIKON.2014.6899837

06899837

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title = "Compact microstrip bandpass filter with tunable notch",

abstract = "Two different designs combining a bandpass and a notch filter are developed to operate in the receiving band from 350–470 MHz. The bandpass filter is designed from a simple structure, by use of only four short circuited stubs and a half wavelength transmission line connecting the stubs. The tunable notch filter ensures an attenuation level of 19.3 dB to 27.3 dB in the frequency range from 360–480 MHz. The measured passband ripple of the combined filter is less than 0.5 dB, while the insertion loss for the simplest design is less than 1.7 dB only 10 MHz from the notch frequency. Even though the wavelength on the selected substrate (εr = 3.55) is approximately 45 cm, the outer dimensions of the final filter only measure 10×10 cm2.",

keywords = "Aerospace, Communication, Networking and Broadcast Technologies, Components, Circuits, Devices and Systems, Fields, Waves and Electromagnetics, Photonics and Electrooptics, Signal Processing and Analysis, Attenuation, Band-pass filters, Bandwidth, Capacitors, Couplings, Microstrip, Passband",

author = "Silas Christensen and Vitaliy Zhurbenko and Johansen, {Tom Keinicke}",

year = "2014",

doi = "10.1109/MIKON.2014.6899837",

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booktitle = "Proceedings of 2014 20th International Conference on Microwaves, Radar, and Wireless Communications",

publisher = "IEEE",

address = "United States",

note = "20th International Conference on Microwaves, Radar, and Wireless Communications, 2014 MIKON ; Conference date: 16-06-2014 Through 18-06-2014",

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AU - Christensen, Silas

AU - Zhurbenko, Vitaliy

AU - Johansen, Tom Keinicke

N1 - Conference code: 20

PY - 2014

Y1 - 2014

N2 - Two different designs combining a bandpass and a notch filter are developed to operate in the receiving band from 350–470 MHz. The bandpass filter is designed from a simple structure, by use of only four short circuited stubs and a half wavelength transmission line connecting the stubs. The tunable notch filter ensures an attenuation level of 19.3 dB to 27.3 dB in the frequency range from 360–480 MHz. The measured passband ripple of the combined filter is less than 0.5 dB, while the insertion loss for the simplest design is less than 1.7 dB only 10 MHz from the notch frequency. Even though the wavelength on the selected substrate (εr = 3.55) is approximately 45 cm, the outer dimensions of the final filter only measure 10×10 cm2.

AB - Two different designs combining a bandpass and a notch filter are developed to operate in the receiving band from 350–470 MHz. The bandpass filter is designed from a simple structure, by use of only four short circuited stubs and a half wavelength transmission line connecting the stubs. The tunable notch filter ensures an attenuation level of 19.3 dB to 27.3 dB in the frequency range from 360–480 MHz. The measured passband ripple of the combined filter is less than 0.5 dB, while the insertion loss for the simplest design is less than 1.7 dB only 10 MHz from the notch frequency. Even though the wavelength on the selected substrate (εr = 3.55) is approximately 45 cm, the outer dimensions of the final filter only measure 10×10 cm2.

KW - Aerospace

KW - Communication, Networking and Broadcast Technologies

KW - Components, Circuits, Devices and Systems

KW - Fields, Waves and Electromagnetics

KW - Photonics and Electrooptics

KW - Signal Processing and Analysis

KW - Attenuation

KW - Band-pass filters

KW - Bandwidth

KW - Capacitors

KW - Couplings

KW - Microstrip

KW - Passband

U2 - 10.1109/MIKON.2014.6899837

DO - 10.1109/MIKON.2014.6899837

M3 - Article in proceedings

SN - 9786176075530

BT - Proceedings of 2014 20th International Conference on Microwaves, Radar, and Wireless Communications

PB - IEEE

T2 - 20th International Conference on Microwaves, Radar, and Wireless Communications

Y2 - 16 June 2014 through 18 June 2014

ER -

Compact microstrip bandpass filter with tunable notch

Abstract

Conference

Keywords

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