Effect of Structural Parameters on High Frequency Characteristics of Microstrip Meander-Line Slow Wave Circuit

Abstract

A novel V-shaped microstrip meander-line slow-wave structure was investigated to expand the operating bandwidth. The high frequency characteristics of V-shaped structure and traditional N-shaped and U-shaped structures were analyzed by electromagnetic simulation software HFSS, and the effects of different structural parameters on the high frequency characteristics were studied. The results show that the V-shaped structure provides better performance in operation bandwidth and interaction impedance than traditional structures, and when the dielectric rod replaces the dielectric slab the performance further improves.

Design of Novel Ultra-wideband Slow-wave Microstrip Transmission Line

“…The slow-wave structure is a simple and effective method to realize the miniaturization of microwave passive devices [1][2] , and it has been widely used in microwave applications such as base-station antennae and phase shifters [3] , etc. Traditional slow-wave structure [4] is made up of single microstrip line repeated cycles on the dielectric substrate in a certain space arrangement, but it has a strong dispersion characteristic at the Sub6-5G band [5] . Therefore, to improve the meander-line structure slow-wave microstrip working bandwidth and further reduce its physical size, a novel structure slow-wave structure that added an open-stub on the traditional structure meander-line is proposed in this paper.…”

Influence Coefficients of Constructive Parameters of Meander Slow-Wave System with Additional Shields

“…Meander systems are widely used in the applications of wireless communication systems and antennas [1]- [3], biomedical field [4], [5], filter production [6]- [8], couplers and in-phase inverters [9], [10], slow-wave systems (SSs) [11]- [15], and traveling waves tubes [16]- [18].…”

Frequency Characteristics of the Input Impedance of Meander Slow-wave System with Additional Shields

“…Meander slow-wave systems are planar structures that can be easily manufactured using standard monolithic microwave integrated circuit (MMIC) fabrication technologies. Pass-band of such systems starts at low frequencies therefore they are widely used as delay lines and deflection systems [1]- [3]. Moreover due to their compact size meander-shape structures are used for design of antennas for wireless communications systems [4], [5], biomedical applications [6], digital video broadcasting [7] and radio frequency identification [8], [9].…”