Study and Design of A Contracting Waveguide Phase Shifter for S-band High-Power Microwave Applications

Zhuang, Qinghe; Feng, Yan; Jiang, Zili; Liu, Min; Xiong, Zhengfeng; Yan, Chuanwei

doi:10.1109/eltech.2019.8839350

Cited by 6 publications

(3 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Microwave energy has been widely used in many aspects of industrial applications, such as microwave heating, microwave plasma, microwave sterilization, microwave medical treatment, and microwave chemistry [1][2][3][4][5][6]. In high-power microwave applications [7][8][9], a three-stub waveguide is often adopted between the source and the load to perform impedance matching and to reduce reflection. However, the impedance of some loads will change nonlinearly due to the influence of temperature in the processing [10], which will cause impedance mismatching.…”

Section: Introductionmentioning

confidence: 99%

A Low-Reflection Tuning Strategy for Three-Stub Waveguides

Liu,

Lai,

Hong

et al. 2024

Electronics

View full text Add to dashboard Cite

In high-power microwave applications, the reflection of energy can be effectively reduced by adjusting the three-stub waveguide. However, most of the existing tuning algorithms do not make an arrangement for the adjustment sequence of stubs, and accurately calculating the depth of the stubs requires a great deal of time via electromagnetic (EM) simulations, which may cause large reflection in the matching process. To solve these problems, we first propose an improved calculation method that can accurately calculate the input impedance of a three-stub waveguide. Then, an impedance matching algorithm is designed based on the equivalent circuit model that can quickly and accurately calculate the optimal depth of the stubs. Finally, we present a low-reflection tuning strategy to suppress the large reflection during the adjustment of the stub process. An experimental system is built to verify the calculation method and the tuning strategy. The results show that the strategy can avoid large reflection in the case of load mutation and can maintain low reflection when the load changes continuously. The algorithm meets the needs of the industry and can be used for automatic and real-time adjustment of three-stub waveguides of different specifications.

show abstract

Section: Introductionmentioning

confidence: 99%

A Low-Reflection Tuning Strategy for Three-Stub Waveguides

Liu,

Lai,

Hong

et al. 2024

Electronics

View full text Add to dashboard Cite

show abstract

“…• changing the length l of the waveguide, • changing the measured displacement β of the waveguide by changing the cross-section, • changing the measured displacement β of the waveguide by the movement of the dielectric parts within the waveguide, • changing the planar polarization of the basic vid of a circular waveguide into a circular polarization, in which a phase shift is achieved by the rotating dielectric part and the reverse transformation of the circular polarization into a planar one [1]. These basic configurations use the basic power phase shifters introduced above, which are continuously modified and improved [2][3][4][5][6]. Literature [2][3][4][5][6] mainly deals with phase variation by changing the dimension of the rectangular waveguide.…”

Section: Introductionmentioning

confidence: 99%

“…These basic configurations use the basic power phase shifters introduced above, which are continuously modified and improved [2][3][4][5][6]. Literature [2][3][4][5][6] mainly deals with phase variation by changing the dimension of the rectangular waveguide. The actual change of the rectangular waveguide dimension is done by inserting various dielectric and ferrite plates into the waveguide.…”

Section: Introductionmentioning

confidence: 99%

Waveguide power phase shifter with a ferrite circulator in S-band

Popela

Láčík

Drazan

2022

Journal of Electrical Engineering

View full text Add to dashboard Cite

This paper presents the application of a phase shifter with a ferrite Y-circulator in band S. Global literature addresses primarily the basic types of power waveguide phase shifters, however, there has been minimal literature on a phase shifter that uses a ferrite circulator for phase shifting. The paper describes theoretical and practical results where a ferrite circulator is used to shift the phase. A power phase shifter utilizing a ferrite circulator could be used in power applications where high demands are placed on the phase shift accuracy with minimal power losses. The phase shift is handled by a tunable waveguide short circuit that is connected to the port 2 of the ferrite circulator. By changing the waveguide length, the phase is changed. The measured results are compared with theoretical calculations and evaluated. The proposed phase shifter utilizing the ferrite circulator has its advantages in its simple design, in the accuracy of the phase adjustment and in the speed of the tuning. Another great advantage is its quite low cost due to its simple design.

show abstract

Design Scheme of Miniaturized High-Power Microwave Source Based on X-Band MW-Level Klystron

Wang,

Miao

et al. 2024

2024 3rd International Conference on Energy and Electrical Power Systems (ICEEPS)

View full text Add to dashboard Cite

Study and Design of A Contracting Waveguide Phase Shifter for S-band High-Power Microwave Applications

Cited by 6 publications

References 6 publications

A Low-Reflection Tuning Strategy for Three-Stub Waveguides

A Low-Reflection Tuning Strategy for Three-Stub Waveguides

Waveguide power phase shifter with a ferrite circulator in S-band

Design Scheme of Miniaturized High-Power Microwave Source Based on X-Band MW-Level Klystron

Contact Info

Product

Resources

About