Photonics-based interference mitigation filters

R.A. Minasian; K.E. Alameh; E.H.W. Chan

doi:10.1109/22.954804

Photonics-based interference mitigation filters

R.A. Minasian, K.E. Alameh, E.H.W. Chan

Research output: Contribution to journal › Article › peer-review

58 Citations (Scopus)

Abstract

New photonic filter structures for interference mitigation of microwave signals are presented. These fiber filters have a parallel topology, and comprise a grating based photonic bandpass filter, or a dual offset cavity structure based on a new noncommensurate delay-line approach. The new topologies overcome the problem of synthesizing both a narrow stopband and a very-wide and flat passband, to simultaneously excise interference with minimal impact on the wanted signal over a wide microwave range. Results demonstrate stopbands of around 1% of center frequency, wide-hand flat transmission, and a shape factor of 10.5 that is the lowest reported for a photonic notch filter, in excellent agreement with predictions.

Original language	English
Pages (from-to)	1894-1899
Number of pages	6
Journal	IEEE Transactions on Microwave Theory and Techniques
Volume	49
Issue number	10
DOIs	https://doi.org/10.1109/22.954804
Publication status	Published - Oct 2001
Externally published	Yes

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title = "Photonics-based interference mitigation filters",

abstract = "New photonic filter structures for interference mitigation of microwave signals are presented. These fiber filters have a parallel topology, and comprise a grating based photonic bandpass filter, or a dual offset cavity structure based on a new noncommensurate delay-line approach. The new topologies overcome the problem of synthesizing both a narrow stopband and a very-wide and flat passband, to simultaneously excise interference with minimal impact on the wanted signal over a wide microwave range. Results demonstrate stopbands of around 1% of center frequency, wide-hand flat transmission, and a shape factor of 10.5 that is the lowest reported for a photonic notch filter, in excellent agreement with predictions.",

keywords = "Interference mitigation filters, Bandpass filters, Notch filters, Optical filters, Photons, Signal interference, Microwave filters",

author = "R.A. Minasian and K.E. Alameh and E.H.W. Chan",

year = "2001",

month = oct,

doi = "10.1109/22.954804",

language = "English",

volume = "49",

pages = "1894--1899",

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TY - JOUR

T1 - Photonics-based interference mitigation filters

AU - Minasian, R.A.

AU - Alameh, K.E.

AU - Chan, E.H.W.

PY - 2001/10

Y1 - 2001/10

N2 - New photonic filter structures for interference mitigation of microwave signals are presented. These fiber filters have a parallel topology, and comprise a grating based photonic bandpass filter, or a dual offset cavity structure based on a new noncommensurate delay-line approach. The new topologies overcome the problem of synthesizing both a narrow stopband and a very-wide and flat passband, to simultaneously excise interference with minimal impact on the wanted signal over a wide microwave range. Results demonstrate stopbands of around 1% of center frequency, wide-hand flat transmission, and a shape factor of 10.5 that is the lowest reported for a photonic notch filter, in excellent agreement with predictions.

AB - New photonic filter structures for interference mitigation of microwave signals are presented. These fiber filters have a parallel topology, and comprise a grating based photonic bandpass filter, or a dual offset cavity structure based on a new noncommensurate delay-line approach. The new topologies overcome the problem of synthesizing both a narrow stopband and a very-wide and flat passband, to simultaneously excise interference with minimal impact on the wanted signal over a wide microwave range. Results demonstrate stopbands of around 1% of center frequency, wide-hand flat transmission, and a shape factor of 10.5 that is the lowest reported for a photonic notch filter, in excellent agreement with predictions.

KW - Interference mitigation filters, Bandpass filters

KW - Notch filters

KW - Optical filters

KW - Photons

KW - Signal interference, Microwave filters

U2 - 10.1109/22.954804

DO - 10.1109/22.954804

M3 - Article

SN - 0018-9480

VL - 49

SP - 1894

EP - 1899

JO - IEEE Transactions on Microwave Theory and Techniques

JF - IEEE Transactions on Microwave Theory and Techniques

IS - 10

ER -

Photonics-based interference mitigation filters

Abstract

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