A design procedure for slot arrays fed by single-ridge waveguide

1988 ◽  
Vol 36 (11) ◽  
pp. 1531-1536 ◽  
Author(s):  
D.Y. Kim ◽  
R.S. Elliott
Keyword(s):  
Design Procedure ◽  
Ridge Waveguide ◽  
Slot Arrays

scholarly journals Design of center-fed printed planar slot arrays

2015 ◽  
Vol 9 (2) ◽  
pp. 453-461
Author(s):  
L. Potgieter ◽  
J. Joubert ◽  
J. W. Odendaal
Keyword(s):  
Ground Plane ◽  
Design Procedure ◽  
Electric Conductor ◽  
Ieee 802.11A ◽  
Array Antennas ◽  
Half Wavelength ◽  
Quarter Wavelength ◽  
Slot Arrays ◽  
Feed Network ◽  
Measured Impedance

A design approach for printed planar slot array antennas is presented. The antenna array consists of half-wavelength slot radiators positioned on a rectangular grid, and a slotline feed network. Three planar slot array antennas for use in IEEE 802.11a applications are designed, a 2 × 2, a 2 × 4, and a 4 × 2 array, all radiating above an electric conductor ground plane placed a quarter-wavelength below the printed slots. These slot arrays have higher aperture efficiencies and occupy less space than typical microstrip patch arrays. The measured impedance bandwidths of the designed unidirectional slot arrays were 19.8, 15.3, and 16.7%, respectively, with peak gains of 11.7, 13.9, and 14.4 dBi. Measured results show very good agreement with the simulated results, which serves as validation of the array design procedure and the accuracy of the simulated results.

scholarly journals Design of Shaped Beam Planar Arrays of Waveguide Longitudinal Slots

2013 ◽  
Vol 2013 ◽  
pp. 1-12 ◽  
Author(s):  
Giovanni Andrea Casula ◽  
Giuseppe Mazzarella ◽  
Giorgio Montisci
Keyword(s):  
Design Procedure ◽  
Pencil Beam ◽  
Shaped Beam ◽  
Planar Arrays ◽  
Slot Arrays ◽  
Synthesis Procedure ◽  
Set Up ◽  
Aperture Distribution ◽  
Longitudinal Slot ◽  
Effective Design

The Elliott’s procedure for the design of a pencil beam waveguide longitudinal slot array has been generalized to encompass the design of shaped beam planar slot arrays. An extended set of design equations, taking into account in an operative way the feeding part of the array, has been devised. From this set of equations, a general and effective design procedure has been set up, shedding light on the constraints posed by a complex aperture distribution. The results of the proposed synthesis procedure have been validated through comparison with a commercial FEM software.

scholarly journals Design of Multilayer Dielectric Cover to Enhance Gain and Efficiency of Slot Arrays

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Giorgio Montisci ◽  
Zusheng Jin ◽  
Mingchao Li ◽  
Hu Yang ◽  
Giovanni Andrea Casula ◽  
...  
Keyword(s):  
Free Space ◽  
Production Cost ◽  
Synthesis Method ◽  
Design Procedure ◽  
Optimal Choice ◽  
Slot Arrays ◽  
Consequent Reduction ◽  
Effective Design ◽  
Array Gain ◽  
Multilayer Dielectric

An effective design procedure, based on the Elliot synthesis method, is proposed to investigate the properties of waveguide slot arrays with multilayer dielectric cover. Then, the features of the designed arrays are analyzed by means of a FEM commercial software, namely, Ansys HFSS 13. We show how a proper choice of the dielectric cover configuration allows increasing the array gain and aperture efficiency, while taking advantage of the properties of the radome structure, in terms of insulation, protection, and pressurization of the radiating waveguides. Therefore, a significant outcome of the optimal choice of the multilayer dielectric cover is the reduction of the number of slots with respect to an array radiating into free space with the same gain and efficiency, with a consequent reduction of the production cost.

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