A Miniature 38-48 GHz MMIC Sub-Harmonic Transmitter With Post-Distortion Linearization

This paper presents a miniature 38-48 GHz sub-harmonic transmitter with post-distortion linearization using a 0.15-μm GaAs HEMT process. The transmitter, which integrates a sub-harmonic mixer, a band-pass driver amplifier, and a linearizer, has a compact chip size of 2.5 mm 2 with conversion gain of...

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Hauptverfasser:	Jeng-Han Tsai, Hong-Yuan Yang, Che-Chung Kuo, Tian-Wei Huang
Format:	Tagungsbericht
Sprache:	eng
Schlagworte:	Band pass filters Driver circuits Gallium arsenide HEMTs Linearity linearizer Millimeter-wave (MMW) MMICs monolithic microwave integrated circuit (MMIC) post-distortion Power amplifiers Power generation Radio frequency subharmonic transmitter Transmitters
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creator	Jeng-Han Tsai Hong-Yuan Yang Che-Chung Kuo Tian-Wei Huang
description	This paper presents a miniature 38-48 GHz sub-harmonic transmitter with post-distortion linearization using a 0.15-μm GaAs HEMT process. The transmitter, which integrates a sub-harmonic mixer, a band-pass driver amplifier, and a linearizer, has a compact chip size of 2.5 mm 2 with conversion gain of 7 ± 1.5 dB from 38 to 48 GHz. With the features of the sub-harmonic mixer and band-pass driver amplifier, the 2f LO leakage rejection of the transmitter is 47 dB. For the linearity of the transmitter, a post-distortion linearizer is added. After linearization, the output spectrum re-growth can be suppressed by 8 dB at 40 GHz. To keep ACPR below -35 dBc, the output power has been increased from -2 to 1 dBm, which means the linear output power has been doubled after linearization.
doi_str_mv	10.1109/MWSYM.2007.380329
format	Conference Proceeding
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The transmitter, which integrates a sub-harmonic mixer, a band-pass driver amplifier, and a linearizer, has a compact chip size of 2.5 mm 2 with conversion gain of 7 ± 1.5 dB from 38 to 48 GHz. With the features of the sub-harmonic mixer and band-pass driver amplifier, the 2f LO leakage rejection of the transmitter is 47 dB. For the linearity of the transmitter, a post-distortion linearizer is added. After linearization, the output spectrum re-growth can be suppressed by 8 dB at 40 GHz. To keep ACPR below -35 dBc, the output power has been increased from -2 to 1 dBm, which means the linear output power has been doubled after linearization.</abstract><pub>IEEE</pub><doi>10.1109/MWSYM.2007.380329</doi><tpages>4</tpages></addata></record>
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source	IEEE Electronic Library (IEL) Conference Proceedings
subjects	Band pass filters Driver circuits Gallium arsenide HEMTs Linearity linearizer Millimeter-wave (MMW) MMICs monolithic microwave integrated circuit (MMIC) post-distortion Power amplifiers Power generation Radio frequency subharmonic transmitter Transmitters
title	A Miniature 38-48 GHz MMIC Sub-Harmonic Transmitter With Post-Distortion Linearization
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