A low-loss, continuously tunable microwave notch filter

2015 ◽  
Vol 8 (3) ◽  
pp. 567-572 ◽  
Author(s):  
Öncel Acar ◽  
Tom K. Johansen ◽  
Vitaliy Zhurbenko
Keyword(s):  
Software Defined Radio ◽  
Notch Filter ◽  
Tunable Filter ◽  
Low Loss ◽  
Tuning Method ◽  
Unmet Demand ◽  
Tuning Ratio ◽  
Tunable Microwave

The development in high-end microwave transceiver systems toward the software defined radio has brought about the need for tunable frontend filters. Although the problem is being tackled by the microwave community, there still appears to be an unmet demand for practical tunable filter technologies. With this motivation, this work presents a tuning method that delivers a resonator Q0of 2000–3621 within a minimum tuning ratio of 1:1.42. A continuously tunable notch filter based on this tuning method is presented. The design is manufactured, measured, and verified. It is shown that the tuning technology compares favorably to other selected technologies.

scholarly journals Demonstration of a Tunable Microwave-Photonic Notch Filter Using Low-Loss Silicon Ring Resonators

2009 ◽  
Vol 27 (12) ◽  
pp. 2105-2110 ◽  
Author(s):  
M.S. Rasras ◽  
Kun-Yii Tu ◽  
D.M. Gill ◽  
Young-Kai Chen ◽  
A.E. White ◽  
...  
Keyword(s):  
Notch Filter ◽  
Ring Resonators ◽  
Low Loss ◽  
Microwave Photonic ◽  
Tunable Microwave

A Tunable Microwave-Photonic Notch Filter Fabricated in CMOS Silicon

2008 ◽  
Author(s):  
M. S. Rasras ◽  
K.Y. Tu ◽  
S. S. Patel ◽  
D. M. Gill ◽  
Y. K. Chen ◽  
...  
Keyword(s):  
Notch Filter ◽  
Microwave Photonic ◽  
Tunable Microwave

Widely tunable microwave photonics notch filter based on a waveguide Bragg grating on silicon

2014 ◽  
Author(s):  
M. Burla ◽  
H. Pishvai Bazargani ◽  
J. St-Yves ◽  
W. Shi ◽  
L. Chrostowski ◽  
...  
Keyword(s):  
Notch Filter ◽  
Microwave Photonics ◽  
Bragg Grating ◽  
Tunable Microwave ◽  
Waveguide Bragg Grating

scholarly journals Continuously Frequency-Tunable Horn Filtennas Based on Dual-Post Resonators

2019 ◽  
Vol 2019 ◽  
pp. 1-12 ◽  
Author(s):  
Andreia A. C. Alves ◽  
Luis G. da Silva ◽  
Evandro C. Vilas Boas ◽  
Danilo H. Spadoti ◽  
S. Arismar Cerqueira
Keyword(s):  
Millimeter Waves ◽  
Indoor Environment ◽  
Horn Antenna ◽  
Tunable Filter ◽  
Mean Square ◽  
Error Vector Magnitude ◽  
Tuning Ratio ◽  
Frequency Tunable ◽  
24 Ghz ◽  
Vector Magnitude

This work reports the concept and development of two mechanically frequency-tunable horn filtennas for microwave and millimeter-waves. Our design approach relies on the integration of a horn antenna with a mechanically tunable filter based on dual-post resonators. The proposed filtennas have been manufactured and experimentally characterized, by means of reflection coefficient, radiation pattern, and gain. Measurements demonstrate that both filtennas have a tuning ratio of approximately 1.37 with continuous adjustment. The first prototype operates from 2.56 to 3.50 GHz, whereas in the second one the bandwidth is from 17.4 to 24.0 GHz. In addition, the higher-frequency filtenna has been implemented in a 5.0-meter-reach indoor environment, using a 16-QAM signal at 24 GHz. The best configuration in terms of performance resulted in a root mean square error vector magnitude (EVMRMS) and antenna radiation efficiency of 3.69% and 97.0%, respectively.

Continuously tunable microwave photonic notch filter based on the differential group delay

2010 ◽  
Vol 53 (1) ◽  
pp. 121-123 ◽  
Author(s):  
Yongxing Jin ◽  
Xinyong Dong ◽  
Junqiang Zhou ◽  
Perry Ping Shum
Keyword(s):  
Group Delay ◽  
Notch Filter ◽  
Differential Group Delay ◽  
Microwave Photonic ◽  
Differential Group ◽  
Tunable Microwave

Tunable microwave notch filter enabled by SBS in silicon

2016 ◽  
Author(s):  
Alvaro Casas-Bedoya ◽  
Blair Morrison ◽  
Mattia Pagani ◽  
David Marpaung ◽  
Benjamin Eggleton
Keyword(s):  
Notch Filter ◽  
Tunable Microwave
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