Waveguide Slot Antenna Arrays

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  1. Waveguide Slot Array Antenna Design
  2. Waveguide Slot Antenna Arrays Mounts
  3. Slotted Waveguide Array Antenna Theory Analysis And Design
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Waveguide Slot Antenna Arrays

Design and analysis of slotted waveguide antenna arrays

Abstract

Arrays

The typical design of a waveguide slot array begins with an examination of the requirements connected with the definition of the size of the array, the types of slots, and feed methods; this is followed by analysis to determine the dimensions and positions of each slot, and a prediction of array performance; the final step is fabrication and test of a breadboard model to validate the analytical design. These design and analysis aspects are considered in connection with the types of waveguide slots, slot-array architecture, equivalent circuit models, pattern calculations, and analysis techniques. Attention is also given to the use of available design data, experimental techniques, tests using subarrays, experimental measurements of radiating slots, and near-field and far-field measurements.

A waveguide slot array antenna for radiating electromagnetic energy in a single beam comprising a plurality of waveguides (51-59), each waveguide (51-59) having slots (110 and 112) spaced at first and second spacings to provide a single beam. The invention overcomes the problem of grating lobes occurring at certain angles for the main beam. Slot antennas in waveguides provide an economical way of the design of antenna arrays. The position, shape and orientation of the slots will determine how (or if) they radiate. Figure 3 shows a rectangular waveguide with a drawn with red lines snapshot of the schematic current distribution in the waveguide walls. The typical design of a waveguide slot array begins with an examination of the requirements connected with the definition of the size of the array, the types of slots, and feed methods; this is followed by analysis to determine the dimensions and positions of each slot, and a prediction of array performance; the final step is fabrication and test of a breadboard model to validate the.


Publication:
Pub Date:
June 1988
Bibcode:

Waveguide Slot Array Antenna Design

1988MiJo...31..109R

Waveguide Slot Antenna Arrays Mounts

Keywords:

Slotted Waveguide Array Antenna Theory Analysis And Design

  • Antenna Arrays;
  • Antenna Design;
  • Microwave Antennas;
  • Slot Antennas;
  • Waveguide Antennas;
  • Bandwidth;
  • Circuit Diagrams;
  • Far Fields;
  • Near Fields;
  • Communications and Radar