NDLI: Design and characterisation model for a linearly polarised patch array fed by serial rectangular waveguide network

Content Provider	IET Digital Library
Author	Olmedo, Sergio Casas Campos, Jose Luis Masa Olivares, Pablo Sánchez
Abstract	A novel method for considering radiating structures independently to their feeding networks is presented. The integration of both parts separately designed suffers a critical misalignment with the theoretical behaviour caused by the mutual coupling effects between adjacent elements. This method analyses radiated near E-field monitors to adjust the whole antenna after joining both independently designed parts. A linearly polarised patch array fed by a rectangular waveguide with internal coupling patches for X band (11–12 GHz) has been designed to validate the method performance. A double stacked microstrip patch structure with an integrated phase compensation microstrip line has been used as radiating element. The coupling patches inside the waveguide are connected to the external radiating patches by means of metallic probes. The presented method requires changes in the feeding structure as in the radiating elements. Several prototypes have been manufactured and measured: the feeding waveguide structure connectorised, the radiating patches connectorised, the union of both with SMA transitions and the final integration into the complete antenna. 18.5 dBi gain and 85% efficiency peak values, as well as 6% usable bandwidth have been experimentally achieved.
Starting Page	1204
Ending Page	1210
Page Count	7
ISSN	17518725
Volume Number	8
e-ISSN	17518733
Issue Number	Issue 14, Nov (2014)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-map/8/14
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-map.2013.0379
Journal	IET Microwaves, Antennas & Propagation
Publisher Date	2014-07-22
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Antenna Accessory Antenna Array Antenna Feeds Antenna Radiation Pattern Compensation Double Stacked Microstrip Patch Structure Efficiency 85 Percent Electromagnetic Wave Polarisation Frequency 11 GHz to 12 GHz Integrated Phase Compensation Microstrip Line Internal Coupling Patch Linearly Polarised Patch Fed Array Metallic Probe Microstrip Antenna Array Microstrip Line Mutual Coupling Effect Radiated E-field Monitors Analysis Radiating Structure Rectangular Waveguide Serial Rectangular Waveguide Network SMA Transition Waveguide And Microwave Transmission Line
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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