scholarly journals Ku Band Bethe Hole Coupler Using Gap Waveguide Technology

2019 ◽  
Vol 3 ◽  
pp. 70-74
Author(s):  
Efat Nematpour ◽  
Mohamad Hossein Ostovarzadeh ◽  
Seyed Ali Razavi
Keyword(s):  
Waveguide Structure ◽  
Low Loss ◽  
Isolation Rate ◽  
High Frequencies ◽  
Microwave Components ◽  
Hole Configuration ◽  
Operating Bandwidth ◽  
A New Technique ◽  
Metal Layers ◽  
Ku Band

The gap waveguide technology is a new technique used for designing and fabricating microwave components, ensuring a low-loss and easy fabrication process, especially at high frequencies, and allowing for the production of multilayer structures due to the lack of requirement of an electrical connection between the metal layers of the waveguide structure. This paper presents the design and areas of implementation of single-hole and multi-hole 20 dB Bethe couplers, using the groove gap waveguide (GGW) technology for Ku band. Simulation results show that the operating bandwidth of the proposed design is over 40% wider, and its isolation rate is more than 25 dB higher. By using the multi hole configuration, a bandwidth that is more than 59% wider and the isolation rate of over 30 dB may be obtained.

Cylindrical radial superlattice conductors for low loss microwave components

2015 ◽  
Vol 117 (10) ◽  
pp. 103911 ◽  
Author(s):  
Arian Rahimi ◽  
Jiyu Wu ◽  
Xiaoyu Cheng ◽  
Yong-Kyu ‘YK’ Yoon
Keyword(s):  
Low Loss ◽  
Microwave Components

scholarly journals Enhancement of Bandwidth using Inset-Fed Patch Antenna for High Frequency Applications

2019 ◽  
Vol 9 (1) ◽  
pp. 1528-1531
Keyword(s):  
Patch Antenna ◽  
High Frequency ◽  
Low Cost ◽  
High Frequencies ◽  
Simulation Results ◽  
Ku Band

Today in communication field, many antennas have been evolved for various applications. The most popularly used antennas are micro-strip antennas. These antennas can be easily fabricated at reasonably low cost. Hence, these antennas are gaining lot of importance in recent times. Many techniques have been in use for micro strip antennas to improve the performance of the antenna parameters. The design of these antennas is slowly moving towards high frequencies, where there is lot of advantage with bandwidth. In this paper a normal and E shaped inset micro-strip antenna in Ku-Band is simulated and the results are presented. It is noted that CST-MS 2015 tool has been used to get the simulation results.

scholarly journals Low Loss Transmission Circular Polarizer for KU Band Application

2018 ◽  
Vol 1 (1) ◽  
pp. 28-33
Author(s):  
Farman Ali Mangi
Keyword(s):  
Circular Polarization ◽  
Transmission Loss ◽  
Low Loss ◽  
New Techniques ◽  
Resonant Frequencies ◽  
Circular Polarizer ◽  
Left Handed ◽  
Distinct Frequency ◽  
The Right ◽  
Ku Band

Low loss transmission circular polarizer is proposed for Ku band applications. The designed structure consists of two closely cross metallic strips which are based on FSS for 15.25 GHz and 15.28 GHz applications. The right hand circular polarization (RHCP) and left handed circular polarization (LHCP) are obtained at 15.25 GHz and at 15.28 GHz. The transmission loss through polarizer is important issue for high frequency applications. Due to transmission loss, new techniques are required to reduce the transmission loss of transmitted wave and achieve perfect circular polarization. Meanwhile, low loss transmission has been achieved by using dual layer of strips to obtain perfect circular polarization at certain mentioned resonant frequencies. Theoretically, it is found that the outgoing waves through polarizer are perfect circular polarization at the distinct frequency ranges.

scholarly journals Wood-based composite materials for ultralight lens antennas in 6G systems

2022 ◽  
Author(s):  
Mikko Kokkonen ◽  
Mikko Nelo ◽  
Henrikki Liimatainen ◽  
Jonne Ukkola ◽  
Nuutti Tervo ◽  
...  
Keyword(s):  
Composite Materials ◽  
Wireless Communication ◽  
Communication Systems ◽  
Wireless Communication Systems ◽  
The Internet ◽  
Low Loss ◽  
High Frequencies ◽  
Lens Antennas ◽  
Wood Based Composite

Extremely high frequencies used in future wireless communication systems such as 6G require low loss materials to avoid wasting power and maintain acceptable efficiency . Furthermore, especially in the internet...

A new technique for producing low-loss BSO waveguides (Conference Presentation)

2018 ◽  
Author(s):  
Florent Behague ◽  
Florent Bassignot ◽  
Ludovic Gauthier-Manuel ◽  
Venancio Calero Vila ◽  
Fadi Baida ◽  
...  
Keyword(s):  
New Technique ◽  
Low Loss ◽  
A New Technique

3D Printed Metalized Plastic Waveguides for Microwave Components

2017 ◽  
Vol 2017 (1) ◽  
pp. 000078-000082 ◽  
Author(s):  
Mohd Ifwat Mohd Ghazali ◽  
Kyoung Youl Park ◽  
Vincens Gjokaj ◽  
Amanpreet Kaur ◽  
Premjeet Chahal
Keyword(s):  
Waveguide Structure ◽  
Metal Coating ◽  
Band Pass Filter ◽  
Leaky Wave ◽  
Passive Components ◽  
Pass Filter ◽  
Microwave Components ◽  
3D Printed ◽  
Band Pass

Abstract This paper investigates the design and fabrication of 3D printed waveguide and their application for the design of microwave passive components. This includes a simple waveguide structure, a band pass filter, and a leaky wave. A Lego-like approach is used to assemble together different 3D printed sub-sections after metal coating. These allow the structure to be fabricated in multiple layers. Simulation and measured results match closely. Details of modeling, fabrication and measurement are presented for these three passive components.

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