Four-Node Antenna Feeding Network for Interfacing With Differential Front-End Electronics

被引：2
作者：
Piekarz, Ilona [1 ]
Sorocki, Jakub [1 ]
Smolarz, Robert [1 ]
Gruszczynski, Slawomir [1 ]
Wincza, Krzysztof [1 ]
机构：
[1] AGH Univ Sci & Technol, Dept Elect, PL-30059 Krakow, Poland
来源：
IEEE ACCESS | 2021年 / 9卷
关键词：
Antenna arrays; Directional couplers; Antenna feeds; Directive antennas; Transceivers; Conductors; Array signal processing; Differential coupler; differential feeding network; polarisation-division-duplex; polarization-reconfigurable antenna; multi-beam antennas; 8 BUTLER MATRIX; CMOS; BAND; LNA; POLARIZATION; DESIGN; ARRAYS;
D O I：
10.1109/ACCESS.2021.3093656
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A novel concept of a differential feeding network for four-node antenna/antenna arrays is proposed. The network is constructed out of a four-strip coupled-line directional coupler operating in a mixed differential-nodal mode enabling direct interfacing of differential front-ends with single-ended antennas. It is shown, that such a configuration provides at the outputs of the proposed feeding network four signals, which are equal in amplitude and with phase progression of 90 degrees. Thus, such a network can be utilized for generating either dual-circular polarization from a 2 x 2 antenna array or can constitute simultaneously two out-of-phase power dividers and a directional coupler resulting in a two-beam antenna array in one cut-plane and two-element array in the other one. The dual-circular excitation is of particular interest for modern-day transceivers as it enables polarization-division-duplex communication. The presented concept is confirmed by measurements of two different antenna arrays operating at 2.5 GHz frequency range featuring dual-circular and dual-beam properties, respectively.
引用
收藏
页码：103728 / 103736
页数：9
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