Proceedings ArticleDOI
Magnetically tunable substrate integrated waveguide bandpass filters employing ferrites
Mohammad Almalkawi,L. Zhu,Vijay Devabhaktuni +2 more
- pp 1-2
TLDR
In this paper, a novel tuning solution for planar reconfigurable microwave filters is presented, which is implemented using substrate integrated waveguide (SIW) technology featuring compact size, low cost, high Q, and high power capacity.Abstract:
A novel tuning solution for planar reconfigurable microwave filters is presented. The proposed filters are implemented using substrate integrated waveguide (SIW) technology featuring compact size, low cost, high Q, and high power-capacity. Tunablity of the proposed reconfigurable filters is achieved by adjusting dc-magnetic bias applied to the ferrite material. Compared to the previously reported reconfigurable filters based on electrical adjustment enabled by mechanical modifications, the proposed filters offer a relatively wide tuning range and stable tenability, while dramatically reducing the complexity of external control system. Effects of filters parameters' including the ferrite material, magnetic DC bias, and SIW configuration, on reconfigurable performance are discussed. Simulation examples of single-circulator and double-circulators tunable bandpass filters are realized using EM simulations for demonstrating the underlying principle.read more
Citations
More filters
Journal ArticleDOI
Tunable SIW Structures: Antennas, VCOs, and Filters
TL;DR: In this article, a planar rectangular waveguide can be constructed in a nonplanar form that is compatible with the existing printed circuit board (PCB) and low-temperature co-fired ceramic techniques.
Journal ArticleDOI
Analysis of a Variable SIW Resonator Enabled by Dielectric Material Perturbations and Applications
Joel D. Barrera,Gregory H. Huff +1 more
TL;DR: In this paper, a variable substrate integrated waveguide resonator enabled by dielectric material perturbations is presented, where a circuit model and closed-form expressions are developed.
Journal ArticleDOI
Ku Band Continuously Tunable Circular Cavity SIW Filter With One Parameter
Fei Huang,Jianyi Zhou,Wei Hong +2 more
TL;DR: In this article, a Ku band continuously tunable filter with one parameter is proposed, which is implemented using substrate integrated waveguide (SIW) technology and has a simple and symmetrical structure.
Journal ArticleDOI
Low Loss Ferrite Y-Junction Circulator Based on Empty Substrate Integrated Coaxial Line at Ku-Band
TL;DR: In this paper, a ferrite-based circulator has been designed and fabricated to operate at a central frequency of 12 GHz and the experimental results confirm the results obtained by the full wave simulations: insertion loss better than −1 dB isolation and return loss below −10 dB from 10 to 14 GHz.
Proceedings ArticleDOI
Liquid filled method for substrate integrated waveguide reconfigurable filter
TL;DR: In this paper, a reconfigurable band-pass filter based on substrate integrated waveguide technologies is proposed, which operates on 4GHz. But this method requires the substrate to be removed from the substrate and filled with liquid dielectric.
References
More filters
Journal ArticleDOI
Integrated microstrip and rectangular waveguide in planar form
Dominic Deslandes,Ke Wu +1 more
TL;DR: In this paper, a planar platform is developed in which the microstrip line and rectangular waveguide are fully integrated on the same substrate, and they are interconnected via a simple taper.
Journal ArticleDOI
High- $Q$ Fully Reconfigurable Tunable Bandpass Filters
TL;DR: In this article, a low-Q varactors are incorporated as part of the inter-resonator and external coupling mechanisms without degrading the overall high Q of the original filter.
Journal ArticleDOI
Substrate-Integrated-Waveguide Circulators Suitable for Millimeter-Wave Integration
W. D'Orazio,Ke Wu +1 more
TL;DR: In this article, a study of substrate-integrated millimeter-wave degree-2 circulators is presented, where the authors characterize the complex gyrator circuit as a preamble to design.
Journal ArticleDOI
A substrate integrated waveguide degree-2 circulator
TL;DR: In this paper, a substrate integrated waveguide (SIW) circulator is proposed and demonstrated at 22 GHz for a degree-2 junction circulator using a post resonator, which can facilitate the integration of planar active components with high-Q passive components.
Book
Microwave circulator design
TL;DR: In this paper, the authors introduce the theory of operation of a circulator and its application in the following applications: Material Selection Electrical Design Magnetic Design Mechanical Design Assembly and Testing Tuning Design Examples List of Symbols Index Frequently-Used Equations
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