Wide‐band, low‐profile millimeter‐wave antenna array

A low‐profile 60‐GHz antenna array has been designed, built, and tested. The design uses a circular waveguide radiator for bandwidth, a stripline distribution network for minimum thickness and flexibility, and a waveguide input for interfacing to other components. Boresight gain variations of less than ±1.5 dB were demonstrated for several units over 57–63 GHz. © 2002 Wiley Periodicals, Inc. Microwave Opt Technol Lett 34: 253–255, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10430