Journal
IEEE ACCESS
Volume 7, Issue -, Pages 6746-6757Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/ACCESS.2018.2890268
Keywords
Radar; CMOS; frequency multiplier; millimeter-wave (mm-wave) packaging; on-chip feeder
Categories
Funding
- Technology Innovation Program, Ministry of Trade, Industry, and Energy [10051928]
- Aerospace Parts Research and Development Program, Ministry of Trade, Industry, and Energy [20002712]
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This paper presents 77-GHz CMOS radar transmitter and receiver chips equipped with monopole feeders for use in frequency-modulated continuous-wave radar systems. The on-chip monopole feeder can feed not only the aperture of waveguides but also the slots on planar circuits by simply attaching the chips to a printed circuit board using a low-cost non-conductive epoxy. With the aid of a high ratio multiplier and the proposed on-chip feeder, a radar system can easily be integrated without needing to use precise and expensive millimeter-wave packaging technologies. In order to experimentally confirm this, the chips integrated with waveguides are first measured and a full radar system integrated on the planar circuit is evaluated using the microstrip patch antennas. Finally, with the benefit of compact integration technology, the design of a five-channel 3-D environmental sensing radar for small-unmanned aerial vehicles is presented.
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