An 86–92 GHz Frequency Shift Keying Transmitter With an Integrated Antenna in 0.5 $\mu{\rm m}$ E/D-PHEMT Technology

An 86–92 GHz frequency shift keying (FSK) transmitter with an integrated antenna in 0.5 $\mu{\rm m}$ enhancement/depletion-pseudomorphic high-electron mobility transistor (E/D-PHEMT) technology is presented in this letter for broadband millimeter-wave applications. The transmitter consists of a push-push voltage controlled oscillator (VCO) and a slot antenna. The chip size of the transmitter is $2\times 1\ {\rm mm}^{2}$ . The transmitter demonstrates a RF output power of higher than $-$8 dBm over the operation frequency and an antenna gain of 3 dBi with broadside radiation pattern. The transmitter is also successfully evaluated with high speed FSK digital modulations. The dc power consumption of the transmitter is within 54 mW with a dc supply voltage of 2 V.