This paper presents a new millimeter-wave （MMW） ultra wideband （UWB） transmitter MMIC which has been developed in an OMMIC 0.1 μm GaAs PHEMT foundry process （ft= 100 GHz） for 22-29 GHz vehicular radar systems. ...This paper presents a new millimeter-wave （MMW） ultra wideband （UWB） transmitter MMIC which has been developed in an OMMIC 0.1 μm GaAs PHEMT foundry process （ft= 100 GHz） for 22-29 GHz vehicular radar systems. The transmitter is composed of an MMW negative resistance oscillator （NRO）, a power amplifier （PA）, and two UWB pulse generators （PGs）. In order to convert the UWB pulse signal to MMW frequency and reduce the total power consumption, the MMW NRO is driven by one of the UWB pulse generators and the power amplifier is triggered by another UWB pulse generator. The main advantages of this transmitter are： new design, simple architecture, high-precision distance measurements, infinite ON/OFF switch ratio, and low power consumption. The total power consumption of the transmitter MMIC is 218 mW with a peak output power of 5.5 dBm at 27 GHz.展开更多
文摘This paper presents a new millimeter-wave （MMW） ultra wideband （UWB） transmitter MMIC which has been developed in an OMMIC 0.1 μm GaAs PHEMT foundry process （ft= 100 GHz） for 22-29 GHz vehicular radar systems. The transmitter is composed of an MMW negative resistance oscillator （NRO）, a power amplifier （PA）, and two UWB pulse generators （PGs）. In order to convert the UWB pulse signal to MMW frequency and reduce the total power consumption, the MMW NRO is driven by one of the UWB pulse generators and the power amplifier is triggered by another UWB pulse generator. The main advantages of this transmitter are： new design, simple architecture, high-precision distance measurements, infinite ON/OFF switch ratio, and low power consumption. The total power consumption of the transmitter MMIC is 218 mW with a peak output power of 5.5 dBm at 27 GHz.
