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Array of waveguide‐fed microstrip antennas
Author(s) -
Deng LingLing,
Zhang YaNan,
Wu Di
Publication year - 2011
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.20477
Subject(s) - microstrip , microstrip antenna , waveguide , microwave , reflective array antenna , optics , patch antenna , power dividers and directional couplers , slotted waveguide , electrical engineering , slot antenna , materials science , physics , optoelectronics , antenna (radio) , computer science , telecommunications , engineering
Abstract A low‐cost Ku‐band array of microstrip antennas, which is fed by standard waveguide, is presented in this article. The 72 corner‐fed square patches of the array are arranged in a 6‐by‐12 configuration. A novel waveguide‐to‐microstrip transition with power divider is employed as the fed for the array to reduce the loss of the microstrip feed line. The resonant frequency of the array is 12.5 GHz and the gain was measured to be 24.3 dBi. The measurement results show good agreements with full‐wave simulation. This array of waveguide‐fed microstrip antennas can be used in many modern communication systems, such as a mobile radar sensor, in which the transition can be fixed as a connection between the module with a front‐end waveguide and the antennas. © 2010 Wiley Periodicals, Inc. Int J RF and Microwave CAE, 2011.