A Waveguide Broad-Wall Transverse Slot Linear Array with Reflection-Canceling Inductive Posts and Grating-Lobe Suppressing Parasitic Dipoles

• HOSSAIN M. G. SORWAR

  Department of Electrical and Electronic Engineering, Tokyo Institute of Technology

• HIROKAWA Jiro

  Department of Electrical and Electronic Engineering, Tokyo Institute of Technology

• ANDO Makoto

  Department of Electrical and Electronic Engineering, Tokyo Institute of Technology

Abstract

A design of a linearly-polarized non-resonant waveguide broad-wall transverse slot linear array with suppressed grating lobes is presented. Each unit element in the array consists of a transverse slot, an inductive post and a parasitic dipole-pair at a height of half of the free space wavelength. It is designed as an isolated unit without considering mutual coupling by using the Method of Moments (MoM) for radiation suppression in grating beam direction and reflection cancellation at the input. The elements thus designed are used in a travelling wave array environment. It is predicted that the reflection is less than -20dB at 11.95GHz while the grating lobes are suppressed by more than 15dB. The design and the characteristics of the array are confirmed by measurements.

Journal

• IEICE Trans. Electron., C

  IEICE Trans. Electron., C 88 (12), 2266-2272, 2005-12-01

  The Institute of Electronics, Information and Communication Engineers

Keywords

• transverse slot
• linear array
• boresight beam
• parasitic dipole
• grating lobe
• dual parasitic beam and reflection

Details

• CRID: 1570291227068342912
• NII Article ID: 110004019529
• NII Book ID: AA10826283
• ISSN: 09168524
• Text Lang: en
• Data Source:
  • CiNii Articles