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A Tunable 220 GHz Comb Generator Realized with an Ultrawideband Mixer in a InP HBT Technology
Published
Author(s)
Jerome Cheron, Rob Jones, Dylan Williams, Peter Aaen
Abstract
We present a new millimeter-wave electrical comb generator with frequency-adjustable tone spacing and a tunable RF center frequency. We use an ultrawideband mixer based on a Gilbert cell topology to upconvert the spectrum of a series of repetitive pulses. The upconverter's local-oscillator frequency sets the center of the RF band while the CW signal driving the pulse generator defines the tone spacing of the comb. We demonstrate a stable electrical comb from 140 GHz to 220 GHz, with a 500 MHz and 2 GHz frequency spacing. This up-converted comb can be used as a phase reference at millimeter-wave frequencies.
Cheron, J.
, Jones, R.
, Williams, D.
and Aaen, P.
(2023),
A Tunable 220 GHz Comb Generator Realized with an Ultrawideband Mixer in a InP HBT Technology, IEEE Microwave and Wireless Technology Letters, [online], https://doi.org/10.1109/LMWT.2023.3294299, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=935758
(Accessed October 14, 2025)