A Ku-band three-stage mmic low-noise amplifier with superiorly low thermal-sensitivity coefficients

Shu Jenn Yu, Wei-Chou Hsu, Ching Sung Lee, Chian Sern Chang, Chang Luen Wu, Ching Hsueh Chang

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A three-stage monolithic microwave integrated-circuit (MMIC) low-noise amplifier (LNA) design with superiorly low thermal-sensitivity coefficients in both the small-signal gain and noise figure characteristics is reported. The amplifier is constituted by using the Al-GaAs/GaAs pseudomorphic high electron mobility transistors (pHEMTs). It is suitable for the commercial applications at Ku-band frequencies. Besides, a compact self-biased structure with a single-bias supply was employed to simplify the circuit and improve thermal stability. A noise figure of 2.3 dB with an associated gain of 22 dB is achieved at 16 GHz, and the output power, P1 dB, is 17 dBm. The proposed LNA has demonstrated excellent thermal stability. The thermal-sensitivity coefficients for the smalt-signal gain and the noise figure are superiorly as low as 0.023 and 0.003 dB/°C, respectively, with respect to the temperature variation from -15 to 85°C.

Original languageEnglish
Pages (from-to)1637-1641
Number of pages5
JournalMicrowave and Optical Technology Letters
Volume49
Issue number7
DOIs
Publication statusPublished - 2007 Jul 1

Fingerprint

Low noise amplifiers
Noise figure
low noise
amplifiers
sensitivity
Thermodynamic stability
thermal stability
coefficients
amplifier design
microwave circuits
Monolithic microwave integrated circuits
High electron mobility transistors
high electron mobility transistors
Frequency bands
integrated circuits
Networks (circuits)
output
Hot Temperature
Temperature
temperature

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

Yu, Shu Jenn ; Hsu, Wei-Chou ; Lee, Ching Sung ; Chang, Chian Sern ; Wu, Chang Luen ; Chang, Ching Hsueh. / A Ku-band three-stage mmic low-noise amplifier with superiorly low thermal-sensitivity coefficients. In: Microwave and Optical Technology Letters. 2007 ; Vol. 49, No. 7. pp. 1637-1641.
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A Ku-band three-stage mmic low-noise amplifier with superiorly low thermal-sensitivity coefficients. / Yu, Shu Jenn; Hsu, Wei-Chou; Lee, Ching Sung; Chang, Chian Sern; Wu, Chang Luen; Chang, Ching Hsueh.

In: Microwave and Optical Technology Letters, Vol. 49, No. 7, 01.07.2007, p. 1637-1641.

Research output: Contribution to journalArticle

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AU - Hsu, Wei-Chou

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