—A wireless interconnect system which transmits and receives RF signals across a chip using integrated antennas, receivers, and transmitters is proposed and demonstrated. The transmitter consists of a voltage-controlled oscillator, an output amplifier, and an antenna, while the receiver consists of an antenna, a low-noise amplifier, a frequency divider, and… (More)
Five compact millimeter-wave 900 and 1800 distributed couplers are realized in the back-end-of-the-line of a 0.13gm SiGe BiCMOS technology. Lange couplers smaller than 160 gm on a side have been implemented showing-4 dB through,-5 dB coupling, 14 dB return loss, and 15 dB isolation for 60-and 77-GHz versions. Ring hybrids with phase-inverters have been… (More)
37.7 mm of die area.
—A phased-array transmitter (TX) for multi-Gb/s non-line-of-sight links in the four frequency channels of the IEEE 802.15.3c standard (58.32 to 64.8 GHz) is fully integrated in a 0.12-m SiGe BiCMOS process. It consists of an up-conversion core followed by a 1:16 power distribution tree, 16 phase-shifting front-ends, and a digital control unit. The TX core… (More)
—Two 5.35-GHz monolithic voltage-controlled oscilla-tors (VCOs) and two prescalers have been fabricated in a digital 0.25-m CMOS process. One VCO uses p + /n-well diodes, while the other uses MOS varactors.
A prototype design of a 2.7 V, 14.5 mA SiGe direct-conversion receiver IC for use in 3G WCDMA mobile cellular systems has been completed and measured. The design includes a bypassable LNA, a quadrature downconverter, and variable gain baseband amplifiers integrated on chip. The static sensitivity performance of the receiver IC is characterized using a… (More)
— A feature-rich second-generation 60-GHz transceiver chipset is introduced. It integrates dual-conversion superheterodyne receiver and transmitter chains, a sub-integer frequency synthesizer, full programmability from a digital interface, modulator and demodulator circuits to support analog modulations (e.g. MSK, BPSK), as well as a universal I&Q interface… (More)
—A generalized architecture and theory for realizing multimodulus, sub-integer frequency division is developed by extending the phase-switched divider technique. The sub-integer divider consists of a pre-scaler, a phase rotator, a post-scaler, and a modulus controller. Phase rotation is proposed as an effective technique to realize fine phase resolution and… (More)