In this letter, the ambipolar transport properties of graphene flakes have been used to
fabricate full-wave signal rectifiers and frequency-doubling devices. By correctly biasing an …

On-chip frequency generators for high frequency applications suffer from degradation of key
passive components, variable capacitors in particular. In this framework, frequency …

Microwave frequency multipliers provide a high performance means of generating
microwave and millimeter-wave signals in a wide variety of communications and radar …

A high-performance 110 GHz frequency quadrupler implemented in 0.13-μm BiCMOS
process is presented. The designed circuit is to be employed in an FMCW imaging radar …

We present an ultra wideband push-push based frequency doubler with differential outputs
and a 3 dB-bandwidth from 4.8 to 80 GHz. The maximum conversion gain is 1.7 dB at 25 …

We report on a consistent large-signal and small-signal modeling and parameter extraction
method for high-speed InP DHBT valid to 110 GHz. Electromagnetic simulation is applied to …

This paper presents design, implementation and measurement results of a high
performance F-band frequency octupler (multiplier by eight) implemented in a 0.13-μm SiGe …

This paper presents a frequency doubler operating at G-band that exceeds the maximum
oscillation frequency (fmax) of the given transistor technology. A common-source transistor …

In this paper a frequency quadrupler circuit, integrated with a commercially available SiGe
HBT technology (f T/f max≈ 80/90 GHz) is presented. The quadrupler consists of two Gilbert …

A system includes a signal generator and a signal combiner. The signal generator is
configured to output a first signal having a first frequency and to output one or more signals …