Dual band resonance of millimeter-wave frequencies antennas on LTCC

This paper presents an aperture-coupled microstrip antenna, which is operating at dual band of millimeter-wave (mmW) frequencies, 28GHz and 38GHz. The aperture antenna was integrated with multilayer substrate construct on 5-layers Low temperature Co-fiber Ceramic (LTCC) with 5 mils thickness. The driven patch was applied to enhance the bandwidth. The bandwidths using are 9.1 percent at 28GHz and 9.4 percent at 38GHz with the direction gains are 6.8dBi and 5.6dBi at 28GHz and 38GHz respectively. Total dimension of single element antenna is 7mm × 4.1mm × 0.68mm.