Effects of Cutting Planes on Filter Performance of FDM 3D-Printed X-Band Waveguide Filters

Author(s):  
Daniel Bruhn ◽  
Daniel Miek ◽  
Kennet Braasch ◽  
Fynn Kamrath ◽  
Chad Bartlett ◽  
...  
Electronics ◽  
2020 ◽  
Vol 9 (8) ◽  
pp. 1221
Author(s):  
Juan Luis Cano ◽  
Angel Mediavilla ◽  
Antonio Tazon

This work introduces a simplified multi-aperture iris notch suitable for designing waveguide filters having an extremely improved compactness/rejection ratio, regarding available solutions, and adequate pass-band performances. The proposed iris architecture, analyzed for the first time, exhibits a unique transmission zero in the waveguide mono-mode bandwidth which can be easily located below or above the pass-band. The frequency of this transmission zero is evaluated in terms of the iris dimensions thus providing useful guidelines for designing filters with suitable responses. As a consequence of this simplified topology, any designed filter can be easily manufactured by cutting along its E-field symmetry plane. This strategy greatly improves the filter’s insertion loss regarding classical implementations based on more complicated arrangements with piled thin metallic sheets. Two exemplary filters have been designed and tested to be used in a high-performance X-band SATCOM terminal with an 80% size reduction with respect to the existing systems. Both filters covering the Rx (7.25–75 GHz) and Tx (7.9–8.4 GHz) sub-bands show a reflection of −25 dB with insertion losses below 1 dB in the pass-band, whereas they present a very sharp out-of-band rejection of at least 90 dB, that is, a 600 dB/GHz slope at X band.


IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 30643-30654 ◽  
Author(s):  
Shaker Alkaraki ◽  
Yue Gao ◽  
Samuel Stremsdoerfer ◽  
Edouard Gayets ◽  
Clive G. Parini

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Ivan A. Mantilla-Gaviria ◽  
Alejandro Díaz-Morcillo ◽  
Juan V. Balbastre-Tejedor

A practical and useful application of the Ant Colony Optimization (ACO) method for microwave corrugated filter design is shown. The classical, general purpose ACO method is adapted to deal with the microwave filter design problem. The design strategy used in this paper is an iterative procedure based on the use of an optimization method along with an electromagnetic simulator. The designs of high-pass and band-pass microwave rectangular waveguide filters working in the C-band and X-band, respectively, for communication applications, are shown. The average convergence performance of the ACO method is characterized by means of Monte Carlo simulations and compared with that obtained with the well-known Genetic Algorithm (GA). The overall performance, for the simulations presented herein, of the ACO is found to be better than that of the GA.


2016 ◽  
Vol 52 (23) ◽  
pp. 1929-1931 ◽  
Author(s):  
Cheng Guo ◽  
Jin Li ◽  
Duc D. Dinh ◽  
Xiaobang Shang ◽  
Michael J. Lancaster ◽  
...  
Keyword(s):  
X Band ◽  

Author(s):  
Hossein Saghlatoon ◽  
Rashid Mirzavand ◽  
Mohammad Mahdi Honari ◽  
Samira Aslanzadeh ◽  
John Doucette ◽  
...  
Keyword(s):  
X Band ◽  

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