A LTCC Antenna Array in Ka- Band for Beam Scanning Applications

Abstract

In this paper, an antenna array for phased array antenna operating in Ka-band (32 - 38GHz) is presented. The proposed antenna is dipole, and the dielectric layer we used is low-temperature co-fired ceramic (LTCC). The active VSWRs of E-plane, D-plane and H-plane are less than 2.25, 2.75 and 2.57 while scanning to 30°, without oversampling the aperture. An antenna array with 64 elements is simulated, and the simulation results show that the proposed antenna array has a scanning angle from -30° to +30° with low gain decrease and good active VSWR. The simulated maximum gain of the antenna array is about 24.6dBi at 35GHz. The proposed phased array antenna has a good application prospect in radar systems.