Open AccessProceedings Article
Butler Matrix Based Multi-Beam Base Station Antenna Array
TLDR
In this article, a three-beam Butler matrix as well as its antenna arrays are presented for cellular base stations, which is able to generate three beams in the azimuth plane, which can increase the capacity of base stations.Abstract:
In this paper, a three-beam Butler matrix as well as its antenna arrays is presented for cellular base stations. The three-beam Butler matrix is able to generate three beams in the azimuth plane, which can increase the capacity of base stations. Striplines are used for developing the 3 × 3 Butler matrix, which is compose of directional couplers and phase shifters. To extend the 3 × 3 Butler matrix to a 3 × 5 one, unequal power dividers are also require. To verify the beam-forming network, 5-element dual-polarized antenna arrays covering LTE band are developed. Multiple beams are obtained by feeding the antenna array with the augmented 3 × 5 Butler matrix. The design is verified by both simulation and experiments.read more
Citations
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Journal ArticleDOI
Design and characterization of a compact single-layer multibeam array antenna using an 8×8 Butler matrix for 5G base station applications
Intan Izafina Idrus,Tarik Abdul Latef,Narendra Kumar Aridas,Mohamad Sofian Abu Talip,Yoshihide Yamada,Tengku Faiz Tengku Mohmed Noor Izam,Tharek Abd Rahman +6 more
TL;DR: A single-layer multibeam array antenna fed by an 8×8 Butler matrix operating at 28 GHz for 5G base station applications' a more cost-effective solution for large-scale production is presented.
Proceedings ArticleDOI
4-40 GHz In-Phase/ 180 ° Out-of-Phase Power Dividers with Enhanced Isolation
TL;DR: In this paper, a parametric study of the microstrip-to-slotline transition is performed to identify the main parameters' influence on its frequency response, followed by a full-wave optimization.
Proceedings ArticleDOI
4-Stage Switched Beam Phased Array Antenna Using Butler Matrix
TL;DR: In this paper, an analysis and design of a switched beam phased array antenna at millimeter wave frequency is described, where an inset feed patch antenna at 35 GHz is designed.
Journal ArticleDOI
Design of broadband microstrip three‐way directional coupler for multibeam antenna application
TL;DR: In this article , a three-way directional coupler (TWDC) is proposed to achieve equal power division and −120°, 0°, and +120° phase differences between output signals.
Book ChapterDOI
A New Kind of Cross Line Based Crossover Used for Energy Saving and Security Enhancement of Industrial Wireless System
Mingtao Qiu,Dakui Wu +1 more
TL;DR: In this article, a new type of compact crossover with a center frequency of 4.9 GHz is proposed for 5G wireless industrial application power reduction and security performance enhancement, which can be used in beamforming part of 5G industrial wireless systems for energy saving and security enhancement.
References
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Book
Microstrip Lines and Slotlines
TL;DR: In this article, the authors present a quasi-static analysis of an Enclosed Microstrip and a Slot-Coupled Microstrip Line, as well as a fullwave analysis of Discontinuity Inductance Evaluation.
Journal ArticleDOI
A Broadband Dual-Polarized Planar Antenna for 2G/3G/LTE Base Stations
TL;DR: In this article, a broadband dual-polarized planar antenna is proposed for 2G/3G/LTE base stations, which is composed of two perpendicularly crossed bow-tie dipoles.
Journal ArticleDOI
A Broadband Dual-Polarized Base Station Antenna With Sturdy Construction
He Huang,Ying Liu,Shuxi Gong +2 more
TL;DR: In this paper, a broadband dual-polarized base station antenna with sturdy construction is presented, which mainly contains four parts: main radiator, feeding baluns, bedframe, and reflector.
Journal ArticleDOI
Wideband Phase Shifter With Wide Phase Range Using Parallel Coupled Lines and L-Shaped Networks
Lei Guo,He Zhu,Amin Abbosh +2 more
TL;DR: In this article, a planar broadband phase shifter with wide range of differential phase is proposed, which uses quarter wavelength parallel coupled lines combined with two L-shape networks, including a short-ended stub and a section of transmission line as an impedance transformer.