Title :
Surface-Micromachined Dual Ka-Band Cavity Backed Patch Antenna
Author :
Lukic, Milan V. ; Filipovic, Dejan S.
Author_Institution :
Univ. of Colorado, Boulder
fDate :
7/1/2007 12:00:00 AM
Abstract :
A dual Ka-band rectangular coaxial line fed cavity backed patch antenna fabricated by a sequential surface micromachining process with ten structural layers is presented in this letter. The antenna bandwidth is 4.1% around 36 GHz, with gain and radiation efficiency of 5.7 dBi and 95%, respectively. The lower band is characterized with 5.1% bandwidth around 28 GHz and a monopole-like radiation pattern with 5.1 dBi maximum gain. Analysis and design are conducted with a finite element code and good agreement with measurements is demonstrated.
Keywords :
antenna radiation patterns; coaxial cables; micromachining; microstrip antennas; millimetre wave antennas; multifrequency antennas; dual Ka-band cavity backed patch antenna; dual Ka-band rectangular coaxial line; finite element code; frequency 28 GHz; frequency 36 GHz; monopole-like radiation pattern; sequential surface micromachining; Antenna radiation patterns; Bandwidth; Coaxial components; Copper; Frequency; Micromachining; Millimeter wave technology; Patch antennas; Resists; Scanning electron microscopy; Patch antenna; rectangular coaxial lines; surface micromachining;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2007.900273
