Compact Integration of Sub-Harmonic Resistive Mixer with Differential Double Slot Antenna in G-Band Using 50nm InP-HEMT MMIC Process

Karandikar, Yogesh B.; Zirath, Herbert; Yan, Yu; Vassilev, Vessen

doi:10.1109/csics.2012.6340081

Cited by 6 publications

(1 citation statement)

References 23 publications

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“…In order to reduce the area, some designs adopt the way of bending transmission lines, but also lead to the limited bandwidth of 30 GHz and 20 GHz respectively [14,15]. The FET without drain voltage can also be used to design and implement passive sub-harmonic mixers without additional DC power consumption [18][19][20][21][22]. Among them, the best circuit achieves a measured conversion loss between 12.5 dB and 16 dB in the radio frequency bandwidth from 120 GHz to 150 GHz, but it also takes up a large area of 1.8 mm 2 due to the Lange coupler and λ/4 transmission line [20].…”

Section: Introductionmentioning

confidence: 99%

A Compact Broadband Monolithic Sub-Harmonic Mixer Using Multi-Line Coupler

2020

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A compact broadband monolithic sub-harmonic mixer is presented in a 70 nm GaAs Technology for millimeter wave wireless communication application. The proposed mixer adopts a novel multi-line coupler structure; where the two-sided coupling energy of radio frequency (RF) and local oscillation (LO) signals are both collected and efficiently feed to anti-parallel diode pair (APDP) topology; resulting in broadband performance and compact chip size. As a comparison in the same circuit configuration; the five-line coupler can expand the bandwidth of the existing three-line coupler by 85% and reduce the area by 39.5% when the central frequency is 127 GHz. The measured conversion gain is −16.2 dB to −19.7 dB in a wide operation frequency band of 110–170 GHz. The whole chip size is 0.47 × 0.66 mm2 including test pads. The proposed mixer exhibits good figure-of-merits for D-band down-converter applications

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