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Orthogonal-mode dual-band rectangular waveguide filters
, Article 27th Iranian Conference on Electrical Engineering, ICEE 2019, 30 April 2019 through 2 May 2019 ; 2019 , Pages 1534-1537 ; 9781728115085 (ISBN) ; Memarian, M ; Sharif University of Technology
Institute of Electrical and Electronics Engineers Inc
2019
Abstract
In this paper, we present a design method of dual-band waveguide rectangular cavity filters, with a series in-line topology. The coupling matrix is based on asynchronously tuned designs, where two sets of resonances exist for the two bands. Thus the filter is inherently different than the typical dual-band designs in the literature, as existing designs utilize resonators at the same frequency. The design at Ku band validates the underlying idea and concept, and the theory of the detuned coupling matrix. This rectangular waveguide implementation can provide noticeable miniaturization in applications with high-power requirements
Design of Dual Band Filter and Miniturized De-multiplexer Using Orthogonal Modes of Resonators
, M.Sc. Thesis Sharif University of Technology ; Rejaei, Behzad (Supervisor) ; Memarian, Mohammad (Supervisor)
Abstract
In this paper our purpose is introducing new method for designing dual pass band filters that it can make the tuning steps easier and more determinant. This method based on matrix coupling theory. We assign a specific arrange for desired coupling matrix that it helps to our porpuse. After design any effect of matrix element has been apparent, so tune steps can be more routine. we used half cut cylinder resonators for designing dual band filter that it decrease size and mass of the filter intensily.After designing dual band filter we can transform its out put to achieve diplexer. New diplexer method also has been introduced at the end of paper
Compact 5G millimeter-wave dual-band filter with application in filtenna
, Article Microwave and Optical Technology Letters ; Volume 63, Issue 2 , 2021 , Pages 620-625 ; 08952477 (ISSN) ; Jafarieh, A ; Behroozi, H ; Mallat, N. K ; Jamaluddin, M. H ; Sajjad Abazari, S ; Sharif University of Technology
John Wiley and Sons Inc
2021
Abstract
In this article, a dual-band sixth order double symmetric T-slot filter is proposed for the 5G communication systems. This filter contains two duplicate square resonators and a T-shape feedline on the Rogers RT duroid 5880 substrate. Operating at the 28 and 38.5 GHz frequencies from licensed 5G frequency bands and small size make this filter appropriate for different 5G applications. Furthermore, an LC equivalent circuit for the filter has been considered that helps us to have a better sight of this filter. Measurement results show good agreement with simulations. The attenuation on the passband is less than 1 dB. In order to evaluate the filter performance besides other millimeter waves...