A hybrid UHF narrow-band filter design

1991 ◽  
Vol 38 (4) ◽  
pp. 353-357
Author(s):  
D.B. Miron
Keyword(s):  
Filter Design ◽  
Narrow Band ◽  
Band Filter ◽  
Narrow Band Filter

Narrowband Bandpass Microstrip Filter Design

2014 ◽  
Vol 945-949 ◽  
pp. 2338-2341
Author(s):  
Yang Li
Keyword(s):  
Filter Design ◽  
Narrow Band ◽  
Simulation Software ◽  
Center Frequency ◽  
Band Pass Filter ◽  
Pass Filter ◽  
Band Filter ◽  
Prototype Structure ◽  
Narrow Band Filter ◽  
Band Pass

This paper analyzes the basic theory of the microstrip narrow-band filter design and accomplishes the design of narrow band-pass filter whose center frequency is on L-band with the help of the Agilent ADS simulation software. The filter adopts Chebyshev’s prototype structure and consists of coupled microstrip line. Its fluctuation is less than 0.5dB and attenuation is less than 1.5dB between 1.9GHZ and 2.1GHZ .Its port Reflection coefficient less than-15dB and attenuation is greater than 20dB at 1.72GHZ and 2.3GHZ. Layout simulation meets the requirement of filter design.

New Design of Integrated 2D Photonic Crystal Narrow Band Filters Using the FDTD-2D Method

Frequenz ◽  
2014 ◽  
Vol 68 (11-12) ◽  
Author(s):  
Hadjira Abri Badaoui ◽  
Mehadji Abri
Keyword(s):  
Photonic Crystal ◽  
Incident Wave ◽  
Filter Design ◽  
Narrow Band ◽  
Transmission Spectra ◽  
Spectral Bandwidth ◽  
Effective Technique ◽  
Band Filter ◽  
Narrow Band Filter ◽  
Maximum Transmission

AbstractIn this paper, integrated 2D photonic crystal narrow band filter design is achieved based on transmission spectra shift. The presented effective technique for the design of narrow band resonant filters obtained by one-missing-row and by choosing proper radii of air holes of the waveguide is proposed. The 2D photonic crystals are designed by utilizing cascaded waveguides with different radii of air holes. The results are presented for normal incident wave with TE polarizations with a narrow spectral bandwidth centered at λ = 1.55 μm. We also discuss the filtering process and its necessary modifications to achieve efficient filtering. A final synthesized filter topology is presented and a band from 1.53 μm to 1.57 μm around 1.55 μm is transmitted with a maximum transmission of about 77% with better performances is achieved.

scholarly journals Simplified Modal-Cancellation Approach for Substrate-Integrated-Waveguide Narrow-Band Filter Design

Electronics ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 962 ◽  
Author(s):  
Sebastian Celis ◽  
Mohamed Farhat ◽  
Abdullah S. Almansouri ◽  
Hakan Bagci ◽  
Khaled N. Salama
Keyword(s):  
Filter Design ◽  
Narrow Band ◽  
Substrate Integrated Waveguide ◽  
New Approach ◽  
Frequency Bands ◽  
Order Filter ◽  
Filter Structure ◽  
Band Filter ◽  
Narrow Band Filter ◽  
Periodic Number

Current substrate-integrated-waveguide (SIW) filter design methodologies can be extremely computational and time-inefficient when a narrow-band filter is required. A new approach to designing compact, highly selective narrow-band filters based on smartly positioned obstacles is thus presented here. The proposed modal-cancellation approach is achieved by translating or eliminating undesired modes within the frequency of interest. This is performed by introducing smartly located obstacles in the maxima and nulls of the modes of interest. This approach is different from the traditional inverter technique, where a periodic number of inductive irises are coupled in a ladder configuration to implement the desired response of an nth-order filter, and significantly reduces the complexity of the resulting filter structure. Indeed, the proposed method may be used to design different filters for several frequency bands and various applications. The methodology was experimentally verified through fabricated prototypes.

scholarly journals Optofluidic Tunable Linear Narrow-Band Filter Based on Bragg Nanocavity

2017 ◽  
Vol 9 (2) ◽  
pp. 1-8
Author(s):  
Chaolong Fang ◽  
Bo Dai ◽  
Qiao Xu ◽  
Qi Wang ◽  
Dawei Zhang
Keyword(s):  
Narrow Band ◽  
Band Filter ◽  
Narrow Band Filter

a-Si:H film on side-polished fiber as optical polarizer and narrow-band filter

1998 ◽  
Vol 330 (2) ◽  
pp. 150-156 ◽  
Author(s):  
A. Andreev ◽  
Bl. Pantchev ◽  
P. Danesh ◽  
B. Zafirova ◽  
E. Karakoleva
Keyword(s):  
Narrow Band ◽  
Band Filter ◽  
Optical Polarizer ◽  
Narrow Band Filter ◽  
Side Polished Fiber

Narrow-band filter consisting of two aplanatic gratings

1982 ◽  
Vol 72 (12) ◽  
pp. 1714 ◽  
Author(s):  
M. V. R. K. Murty ◽  
N. C. Das
Keyword(s):  
Narrow Band ◽  
Band Filter ◽  
Narrow Band Filter

scholarly journals Comet Bennett 1969 i: Narrow-Band Filter Photometry 0.3 to 1.1 Microns

1971 ◽  
Vol 83 ◽  
pp. 93 ◽  
Author(s):  
Torrence V. Johnson ◽  
Larry A. Lebofsky ◽  
Thomas B. McCord
Keyword(s):  
Narrow Band ◽  
Band Filter ◽  
Narrow Band Filter ◽  
Filter Photometry
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