Slot Array Design

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This is the first comprehensive treatment of slotted waveguide array antennas from an engineering perspective. It provides readers with a thorough foundation in applicable theories as well as hands-on instruction for practical analysis and design of important types of waveguide slot arrays.'Slotted Waveguide Array Antennas' goes beyond some of the commonly discussed topics and ventures into areas that include: higher order mode coupling and edge effects; performance optimization in terms of bandwidth and pattern performance; special slot excitation methods; applications such as monopulse and phase steering; and manufacturing tolerances.With specific examples of waveguide array designs accompanied by detailed illustrations and antenna characteristics and many applications, this is a must-have reference for engineers involved in the design and development of slotted waveguide arrays. Additional value is provided by a thorough overview of the related literature in the field and the introductory chapters include the history of these antennas.

Abstract This chapter describes the design and development of broadband slotted waveguide array (SWA) antenna. Conventional SWA antenna offers a few percentages of bandwidth, which can be enhanced using proposed novel differential feeding technique which electrically divides large resonating SWA into wideband subarrays by creating virtual shorts. The arrays consist of multiple dielectric-filled waveguides, each of which is a standing-wave linear array of longitudinal shunt slots. The computerized design process adjusts the length and offset of each slot in the total array until the desired aperture distribution and impedance match are achieved. Slotted array antennas are popularly used in radar applications, in which case design standards require mechanical robustness and high gains. Because the power transmission of radar antennas is very high, slot array antennas are preferred alternatives to planar arrays. Read on for a simple guide to the basic elements of slotted array antennas. This paper presents the design, fabrication, and operation of an edge-wall slotted waveguide array antenna with metal flare for the generation of ultralow side lobes fan-beam radiation. The single traveling wave array antenna consists of 71 radiating elements.

Analytic design of conformal slot arrays

Abstract

A completely analytical design process was developed for small slot arrays, in which the varying effect of mutual coupling is taken into account as a function of element position. This design technique was applied to conformal X-band slot arrays on cylinders of a few wavelengths in diameter. The arrays consist of multiple dielectric-filled waveguides, each of which is a standing-wave linear array of longitudinal shunt slots. The computerized design process adjusts the length and offset of each slot in the total array until the desired aperture distribution and impedance match are achieved.

Slot Array Antenna Design


Publication:

Waveguide Slot Array Antenna Design

Design
Pub Date:
1978
Bibcode:

Waveguide Slot Array Design

1978anap.sympR....P
Keywords:
Waveguide slot array designWaveguide-slot array antenna designs for low-average-sidelobe specifications

Slot Array Design Software

  • Antenna Arrays;
  • Antenna Design;
  • Computer Aided Design;
  • Slot Antennas;
  • Antenna Radiation Patterns;
  • Apertures;
  • Cross Coupling;
  • Design Analysis;
  • Dielectrics;
  • Impedance Matching;
  • Linear Arrays;
  • Standing Waves;
  • Superhigh Frequencies;
  • Waveguides;
  • Communications and Radar
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