Three-octave band in-phase power divider using loosely coupled microstrip lines and microstrip to slotline transitions

被引：1
作者：
Ahmed, U. T. [1 ]
Abbosh, A. M. [1 ]
机构：
[1] Univ Queensland, Sch ITEE, Brisbane, Qld 4072, Australia
来源：
ELECTRONICS LETTERS | 2015年 / 51卷 / 24期
关键词：
power dividers; microstrip lines; slot lines; waveguide transitions; three octave band power divider; loosely coupled microstrip lines; microstrip-slotline transitions; planar microwave in-phase power divider; microstrip-slotline-microstrip transitions; isolation resistor; substrate RO4003C; dielectric constant; size; 40; mm; frequency 1 GHz to 8 GHz; DESIGN;
D O I：
10.1049/el.2015.3119
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：
A planar microwave in-phase power divider operating over three-octave frequency band is presented. The proposed device is composed of two main parts. The first one is a pair of microstrip-slotline-microstrip transitions introduced to match the impedances at the input port. The second one is a pair of loosely coupled microstrip lines with two isolation resistors to provide improved isolation performance at the output ports over a wide range of frequency band. The device has a compact area of 40 x 40 mm using the substrate RO4003C (dielectric constant of 3.38 and thickness of 0.406 mm). The simulated and experimental results of the developed device show three-octave bandwidths (155% fractional bandwidth) with isolation >15 dB across the investigated band from 1 to 8 GHz. In addition, the device provides a <+/- 2 degrees differential phase between the in-phase output ports across the whole frequency band.
引用
收藏
页码：2019 / 2020
页数：2
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