Subharmonically Pumped 210 GHz I/Q Mixers

Lopez-Diaz, D.; Kallfass, Ingmar; Tessmann, A.; Leuther, A.; Maßler, H.; Schlechtweg, M.; Ambacher, O.

doi:10.1109/csics.2010.5619614

Cited by 4 publications

(2 citation statements)

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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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Section: Introductionmentioning

confidence: 99%

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

2020

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“…An active dual-gate SHP mixer based on a GaAs mHEMT technology is shown in [7]. In [8], resistive SHP I/Q mixers are presented.…”

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confidence: 99%

A D-Band Subharmonically-Pumped Resistive Mixer Based on a 100 nm MHEMT Technology

Campos-Roca¹

2011

ETRI J

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A D‐band subharmonically‐pumped resistive mixer has been designed, processed, and experimentally tested. The circuit is based on a 180° power divider structure consisting of a Lange coupler followed by a λ/4 transmission line (at local oscillator (LO) frequency). This monolithic microwave integrated circuit (MMIC) has been realized in coplanar waveguide technology by using an InAlAs/InGaAs‐based metamorphic high electron mobility transistor process with 100‐nm gate length. The MMIC achieves a measured conversion loss between 12.5 dB and 16 dB in the radio frequency bandwidth from 120 GHz to 150 GHz with 4‐dBm LO drive and an intermediate frequency of 100 MHz. The input 1‐dB compression point and IIP3 were simulated to be 2 dBm and 13 dBm, respectively.

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