A novel 94-GHz MHMET-based diode mixer using a 3-dB tandem coupler

Mun Kyo Lee; Byeong Ok Lim; Sang Jin Lee; Dong Sik Ko; Sung Woon Moon; Dan An; Yong Hoh Kim; Sam Dong Kim; Hyun Chang Park; Jin Koo Rhee

doi:10.1109/LMWC.2008.2002466

A novel 94-GHz MHMET-based diode mixer using a 3-dB tandem coupler

Mun Kyo Lee
, Byeong Ok Lim
, Sang Jin Lee
, Dong Sik Ko
, Sung Woon Moon
, Dan An
, Yong Hoh Kim
, Sam Dong Kim
, Hyun Chang Park
, Jin Koo Rhee

Department of Electronics & Electrical Engineering

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

We report a high-performance 94-GHz monolithic millimeter-wave integrated-circuit diode mixer using metamorphic high-electron mobility transistor (MHEMT) diodes and a coplanar waveguide tandem coupler. A novel single-balanced structure of diode mixer is proposed in this paper, where a 3-dB tandem coupler with two sections of parallel-coupled line and air-bridge crossover structures are used for wide frequency operation. The fabricated mixer exhibits excellent local oscillator-radio-frequency (LO-RF) isolation, greater than 30 dB, in the 5-GHz bandwidth of 91-96 GHz. A good conversion loss of 7.4 dB is measured at 94 GHz. The proposed MHEMT-based diode mixer shows superior LO-RF isolation and conversion loss to those of the W-band mixers reported to date.

Original language	English
Article number	4624628
Pages (from-to)	626-628
Number of pages	3
Journal	IEEE Microwave and Wireless Components Letters
Volume	18
Issue number	9
DOIs	https://doi.org/10.1109/LMWC.2008.2002466
State	Published - Sep 2008

Keywords

Coplanar waveguide (CPW)
Diode mixer
Metamorphic high-electron mobility transistors (MHEMTs)
Monolithic microwave integrated circuit (MMIC)
Tandem coupler
W-band

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10.1109/LMWC.2008.2002466

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title = "A novel 94-GHz MHMET-based diode mixer using a 3-dB tandem coupler",

abstract = "We report a high-performance 94-GHz monolithic millimeter-wave integrated-circuit diode mixer using metamorphic high-electron mobility transistor (MHEMT) diodes and a coplanar waveguide tandem coupler. A novel single-balanced structure of diode mixer is proposed in this paper, where a 3-dB tandem coupler with two sections of parallel-coupled line and air-bridge crossover structures are used for wide frequency operation. The fabricated mixer exhibits excellent local oscillator-radio-frequency (LO-RF) isolation, greater than 30 dB, in the 5-GHz bandwidth of 91-96 GHz. A good conversion loss of 7.4 dB is measured at 94 GHz. The proposed MHEMT-based diode mixer shows superior LO-RF isolation and conversion loss to those of the W-band mixers reported to date.",

keywords = "Coplanar waveguide (CPW), Diode mixer, Metamorphic high-electron mobility transistors (MHEMTs), Monolithic microwave integrated circuit (MMIC), Tandem coupler, W-band",

author = "Lee, \{Mun Kyo\} and Lim, \{Byeong Ok\} and Lee, \{Sang Jin\} and Ko, \{Dong Sik\} and Moon, \{Sung Woon\} and Dan An and Kim, \{Yong Hoh\} and Kim, \{Sam Dong\} and Park, \{Hyun Chang\} and Rhee, \{Jin Koo\}",

year = "2008",

month = sep,

doi = "10.1109/LMWC.2008.2002466",

language = "English",

volume = "18",

pages = "626--628",

journal = "IEEE Microwave and Wireless Components Letters",

issn = "1531-1309",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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T1 - A novel 94-GHz MHMET-based diode mixer using a 3-dB tandem coupler

AU - Lee, Mun Kyo

AU - Lim, Byeong Ok

AU - Lee, Sang Jin

AU - Ko, Dong Sik

AU - Moon, Sung Woon

AU - An, Dan

AU - Kim, Yong Hoh

AU - Kim, Sam Dong

AU - Park, Hyun Chang

AU - Rhee, Jin Koo

PY - 2008/9

Y1 - 2008/9

N2 - We report a high-performance 94-GHz monolithic millimeter-wave integrated-circuit diode mixer using metamorphic high-electron mobility transistor (MHEMT) diodes and a coplanar waveguide tandem coupler. A novel single-balanced structure of diode mixer is proposed in this paper, where a 3-dB tandem coupler with two sections of parallel-coupled line and air-bridge crossover structures are used for wide frequency operation. The fabricated mixer exhibits excellent local oscillator-radio-frequency (LO-RF) isolation, greater than 30 dB, in the 5-GHz bandwidth of 91-96 GHz. A good conversion loss of 7.4 dB is measured at 94 GHz. The proposed MHEMT-based diode mixer shows superior LO-RF isolation and conversion loss to those of the W-band mixers reported to date.

AB - We report a high-performance 94-GHz monolithic millimeter-wave integrated-circuit diode mixer using metamorphic high-electron mobility transistor (MHEMT) diodes and a coplanar waveguide tandem coupler. A novel single-balanced structure of diode mixer is proposed in this paper, where a 3-dB tandem coupler with two sections of parallel-coupled line and air-bridge crossover structures are used for wide frequency operation. The fabricated mixer exhibits excellent local oscillator-radio-frequency (LO-RF) isolation, greater than 30 dB, in the 5-GHz bandwidth of 91-96 GHz. A good conversion loss of 7.4 dB is measured at 94 GHz. The proposed MHEMT-based diode mixer shows superior LO-RF isolation and conversion loss to those of the W-band mixers reported to date.

KW - Coplanar waveguide (CPW)

KW - Diode mixer

KW - Metamorphic high-electron mobility transistors (MHEMTs)

KW - Monolithic microwave integrated circuit (MMIC)

KW - Tandem coupler

KW - W-band

UR - https://www.scopus.com/pages/publications/52149121549

U2 - 10.1109/LMWC.2008.2002466

DO - 10.1109/LMWC.2008.2002466

M3 - Article

AN - SCOPUS:52149121549

SN - 1531-1309

VL - 18

SP - 626

EP - 628

JO - IEEE Microwave and Wireless Components Letters

JF - IEEE Microwave and Wireless Components Letters

IS - 9

M1 - 4624628

ER -

A novel 94-GHz MHMET-based diode mixer using a 3-dB tandem coupler

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Keywords

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