Frequency Selective Impedance Transformer With High-Impedance Transforming Ratio and Extremely High/Low Termination Impedances

被引：7

作者：

Jeong, Yongchae ^{[1
]}

Chaudhary, Girdhari ^{[1
]}

Kim, Phirun ^{[2
]}

机构：

[1] Jeonbuk Natl Univ, IT Convergence Res Ctr, Div Elect & Informat Engn, Jeonju 54896, South Korea

[2] Minist Posts & Telecommun, Gen Dept Frequency Spectrum Management, Phnom Penh 120210, Cambodia

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS | 2021年 / 68卷 / 06期

基金：

新加坡国家研究基金会;

关键词：

Coupled line; frequency selectivity; high impedance transforming ratio; impedance transformer; ANTENNA; LINES;

D O I：

10.1109/TCSI.2021.3063352

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This article presents a novel frequency selective impedance transformer (ITs) with high transforming ratio and extremely low/high termination impedances (1 Omega or 2 Omega and several k Omega). The design equations are derived for both low and high termination impedances and effectively demonstrated. For transforming extremely low or high termination impedances, the characteristic impedances of open or short-circuited transmission line (TL) load can be very high or low, which cannot be fabricated with normal substrates because of the very narrow or broad width of TL. To solve the practical realization problem, the parallel-coupled lines can be adopted instated of TL. For the validation, two types of ITs are designed and measured at a center frequency (f(0)) of 3.5 GHz with impedance transforming ratios of r = 25 and r = 71.43 (2 Omega : 50 Omega and 35 Omega : 2500 Omega). The measurement results are consistent with simulation and theoretical predicated results. For achieving frequency selectivity, transmission zeros are generated very close to passband with stop-band suppression of higher than 40 dB.

引用

页码：2382 / 2392

页数：11

共 50 条

[31] BROKEN-CONDUCTOR AND HIGH-IMPEDANCE FAULT-DETECTION BY HIGH-FREQUENCY IMPEDANCE MONITORING
GRAHAM, HL
CARLSON, AJ
GRANBERG, TA
[J]. IEEE TRANSACTIONS ON POWER APPARATUS AND SYSTEMS, 1980, 99 (04): : 1324 - 1324
[32] HIGH-IMPEDANCE GUARDED VOLTMETER
LATHAM, D
[J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 1971, 42 (04): : 535 - &
[33] Peano high-impedance surfaces
McVay, J
Hoorfar, A
Engheta, N
[J]. RADIO SCIENCE, 2005, 40 (06)
[34] AN AMPLIFIER FOR HIGH-IMPEDANCE VOLTMETERS
PARMLEY, B
[J]. QST, 1983, 67 (12) : 41 - 42
[35] High-impedance coaxial autoaccelerator
Webb, Timothy J.
[J]. IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 2007, 54 (06) : 2611 - 2618
[36] High-impedance RF probe
Bateman, C
[J]. ELECTRONICS WORLD, 2001, 107 (1786): : 778 - 784
[37] Ultra-Thin Absorbers Comprised by Cascaded High-Impedance and Frequency Selective Surfaces
Panaretos, Anastasios H.
Brocker, Donovan E.
Werner, Douglas H.
[J]. IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, 2015, 14 : 1089 - 1092
[38] High Frequency-Selectivity Impedance Transformer
Kim, Phirun
Chaudhary, Girdhari
Park, Junsik
Jeong, Yongchae
Lim, Jongsik
[J]. 2015 IEEE RADIO AND WIRELESS SYMPOSIUM (RWS), 2015, : 135 - 137
[39] Frequency-selective surface composed of aperture-coupled high-impedance surfaces
Davies, RW
Morrow, IL
Cooper, JF
Youngs, I
[J]. MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 2006, 48 (06) : 1022 - 1025
[40] Comparative Analysis of Particularity for Inrush Current Generated by High-impedance Transformer
Cao W.
Yin X.
Wang Y.
Zhang Z.
Guo Q.
Pan Y.
[J]. Dianli Xitong Zidonghua/Automation of Electric Power Systems, 2019, 43 (16): : 141 - 147

← 1 2 3 4 5 →