A high-power microwave circular polarizer and its application on phase shifter

Shao, Hongxia; Hu, Yongmei; Chang, Chao; Guo, Letian

doi:10.1063/1.4944858

Cited by 5 publications

(1 citation statement)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In HPM applications, phase shifters and other microwave transmission components typically operate under a high-level vacuum condition. Under vacuum conditions, the RF breakdown field strength is approximately 1 MV/cm [18,19]. For assurance, assuming the breakdown field strength is 0.7 MV/cm, the phase shifter has a power-handling capacity larger than 242 MW.…”

Section: Simulation Of the Rotary Waveguide Phase Shiftermentioning

confidence: 99%

A Novel High-Power Rotary Waveguide Phase Shifter Based on Circular Polarizers

et al. 2023

View full text Add to dashboard Cite

This paper presents a novel high-power rotary waveguide phase shifter based on circular polarizers specifically engineered for high-power microwave (HPM) applications. The phase shifter is capable of performing a precise 360° linear phase shift through rotation and consists of three parts: a linearly polarized to left-handed circularly polarized (LP-LHCP) mode converter, a left-handed to right-handed circularly polarized (LH-RHCP) mode converter, and a linearly polarized to right-handed circularly polarized (LP-RHCP) mode converter. This paper analyzes the phase-shifting principle, optimizes the three parts of the X-band rotary waveguide phase shifter, and conducts simulation studies on the entire phase shifter, which is made of aluminum. The results show that the reflection is less than −20 dB and the insertion loss is below 0.3 dB within 9.5 GHz to 10.2 GHz. The phase shift is equal to twice the rotation angle within this frequency range. Specifically, the phase shifter can achieve a linear phase shift of 360° when rotated from 0° to 180°, with a maximum deviation of less than 1.2°. Moreover, the power-handling capacity of the phase shifter in vacuum exceeds 242 MW. In the meantime, a prototype of a phase shifter was manufactured, and the experimental results are in good agreement with the simulation results.

show abstract

Section: Simulation Of the Rotary Waveguide Phase Shiftermentioning

confidence: 99%

A Novel High-Power Rotary Waveguide Phase Shifter Based on Circular Polarizers

et al. 2023

View full text Add to dashboard Cite

show abstract

Design and experimental demonstration of a TEM-TE10 phase shifter for high-power microwave applications

Sun

Yuan

et al. 2019

Review of Scientific Instruments

View full text Add to dashboard Cite

A novel phase shifter used to adjust the output phase of high power microwave (HPM) is investigated. The phase shifter is composed of two different circular polarizers, one of which can convert the coaxial transverse electromagnetic mode (TEM) into circularly polarized (CP) TE11 mode, and the other one can realize the transformation between the CP TE11 mode and the rectangular TE10 mode. The two circular polarizers are connected by a circular waveguide, and the TEM-TE11 circular polarizer can rotate around its axis continuously. In this way, the phase shifter can adjust the output phase of the TE10 mode in the range of 0°–360°. In this paper, the principle of a phase shifter working at 1.57 GHz, as well as the experimental results, is demonstrated. The experimental and simulation results are in good agreement. At the central frequency, the transmission efficiency in this range of phase-shifting process is over 94.6%, and the power-handling capacity is as high as 1.5 GW. This novel phase shifter is of interest to HPM spatial power combination technologies.

show abstract

A novel high-power waveguide phase shifter with continuous linear phase adjustment

Yuan

Zhang

et al. 2020

Review of Scientific Instruments

View full text Add to dashboard Cite

A novel all-metal phase shifter with continuous linear phase adjustment for high-power microwave applications is presented and tested in this paper. The phase adjustment is achieved through the rotation of a phase reverser for a circularly polarized wave, and the output phase accomplishes a phase adjustment range of 360° by rotating the phase reverser for 180°. Due to the symmetrical characteristics, its position after rotating 180° is the same as the initial position, which can achieve continuous phase adjustment and avoid phase mutation. Simulation results indicate that the phase shifter achieves the transmission efficiency greater than 99.90% at a center frequency of 8.4 GHz, and the bandwidth of transmission efficiency greater than 98.00% is up to 50 MHz. Experiments are carried out and the measured results are in good agreement with simulation. To sum up, the power capacity of this phase shifter is estimated to be more than 80 MW under vacuum conditions (<10−3 Pa), and it can be applied to fast continuous high-power beam-steerable antenna arrays or mode conversion systems.

show abstract

A high-power microwave circular polarizer and its application on phase shifter

Cited by 5 publications

References 26 publications

A Novel High-Power Rotary Waveguide Phase Shifter Based on Circular Polarizers

A Novel High-Power Rotary Waveguide Phase Shifter Based on Circular Polarizers

Design and experimental demonstration of a TEM-TE10 phase shifter for high-power microwave applications

A novel high-power waveguide phase shifter with continuous linear phase adjustment

Contact Info

Product

Resources

About