A Differential printed antenna design for multiband Impulse Radio transmitter at 60 GHz

International audienceWe propose in this paper two microtrip planar antennas dedicated to a 60 GHz high data rate Impulse Radio Multi-band On Off Keying (IR-MBOOK) low power consumption transmitter architecture. The planar antennas were designed and simulated on a conventional and low-cost RT/Duroid 5880 substrate, and then are connected after two differential Power Amplifiers. The antennas serve for radiation as well as an out-of-phase power combiner. In this solution, the 57.05-63.7GHz dedicated band is separated into four balanced sub-bands. We propose the use of two differential planar antennas to cover the dedicated bandwidth on the transmitter architecture. An antenna covers the first 57.05-60.257GHz sub-band (band 1 and 2) and a second antenna covers the 60.257-63.7GHz sub-band (band 3 and 4). The planar antennas 1 and 2 were designed and simulated using the electromagnetic HFSS software and they give a maximum gain of 9.81 dBi and 10.03 dBi, respectively