Flexible and miniaturized power divider

Abstract

Flexible and miniaturized power divider franc ‚ois burdin, florence podevin and philippe ferrari A new flexible and miniaturized power divider (PD), based on the Wilkinson PD topology, is carried out in this paper. Flexibility and size reduction are achieved simultaneously thanks to both an open-stub loading the input port and additional transmission lines (TLines) connecting the output ports to the isolation resistance. Design equations and rules are given. As a proof-of-concept, two PDs working at 2.45 GHz were fabricated and measured. Then, on the basis of the previous developments, a 1:4 power-dividing feeding network was realized. It highlights the high performance and flexibility of the proposed PD. Agreement between simulation and measurement results is very good, for PDs as well as for the feeding network, thus validating the proposed approach. This concept is straightforward to be applied at higher frequencies, in particular in the millimeter-wave range on CMOS technologies, where flexibility in the choice of the TLines characteristic impedances and size reduction are mandatory.

Wideband filtering power dividers with wide stopband rejection

“…In modern microwave system, power dividers (PDs) [1] are widely applied in power amplifiers, antenna arrays, mixers, and phase shifters. Bandpass filters are also essential devices in radio frequency and microwave front ends.…”

Compact multi-layer N-way power divider with closed-ring-shaped isolation network

“…It could be used in the power-combing amplifier, mixer, and the feeding network of the array antenna [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]. Since the Wilkinson power divider has been proposed in the 1960s [3], great interest has been aroused in developing various kinds of power dividers, such as the waveguide-based power divider [1-6], quasi-optical power divider [7,8], and planar power divider [9][10][11][12][13][14][15][16]. Among these power dividers, the planar power divider, which has advantages of compact size, easy to fabricate, and high level of integration, is widely used in microwave systems.…”

Волноводно-щелевой 24-канальный делитель мощности Ku-диапазона с малыми потерями

“…Делители мощности, реализующие перечисленные требования, можно условно разделить на две группы. К первой группе относятся делители мощности, представляющие собой бинарную древовидную структуру и реализуемые на базе каскадного соединения микрополосковых делителей мощности Уилкинсона или их модификаций [1]. Существенным недостатком такого построения является быстрый рост дополнительных потерь с увеличением каскадов деления, в результате чего КПД устройства уменьшается как 1/L K , где K = log 2 N -число каскадов деления, L -потери на один каскад, N -число выходов делителя.…”