A Calculation of the Surface Current and Radiation Field of an Ideal Half-Plane Excited by a Slot Perpendicular to its Edge

IF 0.7 4区地球科学 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Radiophysics and Quantum Electronics Pub Date : 2026-02-13 DOI:10.1007/s11141-026-10454-2

E. I. Nefedov, I. I. Ponomarev, V. P. Zayarnyi, E. S. Semenov

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Abstract

The problem of establishing the relationship between the surface currents and the radiation field of a perfectly conducting half-plane excited by slots of various shapes (constant width, linearly or exponentially expanding, etc.) perpendicular to the edge of the half-plane is solved. The relationships are obtained which allow one to calculate the currents induced on the surface of a half-plane affecting the radiation-field creation. The relationship of the surface currents on the half-plane with radiation patterns (RP) of the corresponding slot antennas (SA) is established. The curves of the surface currents and RP for SA of constant width are calculated on the basis of the obtained formulas. The patterns of variation in the current dependences on the geometric dimensions of the slot and their effect on the corresponding RP were established. It has been shown that experimentally measured RP for similar experimental SA confirm the identified regularities for the corresponding design currents and RP, and make it possible to establish the applicability range for the obtained mathematical models. The SA studies were carried out in the frequency range 8–12 GHz (the average frequency is 10 GHz). The validity of the obtained models in this frequency range is shown.

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垂直于狭缝激励的理想半平面表面电流和辐射场的计算

解决了由垂直于半平面边缘的各种形状的狭缝（等宽、线性或指数扩展等）激发的完美导电半平面表面电流与辐射场之间的关系问题。得到了影响辐射场产生的半平面表面感应电流的关系式。建立了半平面表面电流与相应槽天线辐射方向图（RP）的关系。根据所得公式，计算了等宽SA的表面电流曲线和RP曲线。建立了电流随狭槽几何尺寸的变化规律及其对相应RP的影响。实验结果表明，在相似的实验SA下，实验测得的RP证实了相应设计电流和RP的识别规律，并为所得到的数学模型建立了适用范围。SA研究在8-12 GHz频率范围内进行（平均频率为10 GHz）。所得到的模型在该频率范围内是有效的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Radiophysics and Quantum Electronics ENGINEERING, ELECTRICAL & ELECTRONIC-PHYSICS, APPLIED

CiteScore

1.10

自引率

12.50%

发文量

审稿时长

6-12 weeks

期刊介绍： Radiophysics and Quantum Electronics contains the most recent and best Russian research on topics such as: Radio astronomy; Plasma astrophysics; Ionospheric, atmospheric and oceanic physics; Radiowave propagation; Quantum radiophysics; Pphysics of oscillations and waves; Physics of plasmas; Statistical radiophysics; Electrodynamics; Vacuum and plasma electronics; Acoustics; Solid-state electronics. Radiophysics and Quantum Electronics is a translation of the Russian journal Izvestiya VUZ. Radiofizika, published by the Radiophysical Research Institute and N.I. Lobachevsky State University at Nizhnii Novgorod, Russia. The Russian volume-year is published in English beginning in April. All articles are peer-reviewed.