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Monolithically Integrated 200-GHz Double-Slot Antenna and Resistive Mixers in a GaAs-mHEMT MMIC Process

Yu Yan (Institutionen för mikroteknologi och nanovetenskap, Mikrovågselektronik) ; Yogesh B. Karandikar (Institutionen för mikroteknologi och nanovetenskap, Mikrovågselektronik) ; Sten E. Gunnarsson (Institutionen för mikroteknologi och nanovetenskap, Mikrovågselektronik) ; Bahar M. Motlagh ; Sergey Cherednichenko (Institutionen för mikroteknologi och nanovetenskap, Terahertz- och millimetervågsteknik ) ; Ingmar Kallfass ; Arnulf Leuther ; Herbert Zirath (Institutionen för mikroteknologi och nanovetenskap, Mikrovågselektronik)
IEEE Transactions on Microwave Theory and Techniques (0018-9480). Vol. 59 (2011), 10, p. 2494-2503.
[Artikel, refereegranskad vetenskaplig]

This paper presents the design and characterization of two resistive mixers integrated with a double-slot antenna in a 100-nm GaAs mHEMT technology. With RF frequency varying from 185 to 202 GHz, a typical conversion loss(Lc)of 8.0 dB is measured for the single-ended mixer and a typical Lc of 12.2 dB is obtained from one of the two IF outputs for the single-balanced mixer. Each mixer is integrated with a double-slot antenna and mounted on an Si lens. Incorporating the antenna gain and the conversion loss of the mixer, a typical receiver gain of 15.4 dB is achieved for the integrated antenna with single-ended mixer, and a typical receiver gain of 11.2 dB is obtained for the integrated antenna with single-balanced mixer by measuring one of the two IF outputs. In this paper, a novel method is also proposed and proved to evaluate a moderate to high noise figure (NF) device in millimeter/submillimeter frequency band. The result shows that the single-ended mixer in this paper has an NF around 1.0 dB higher compared to its Lc, and the single-balanced one has an NF about 1.6 dB higher than its Lc at room-temperature operation.

Nyckelord: Conversion loss, double-slot antenna, GaAs, G-band, metamorphic HEMT (mHEMT), monolithic microwave integrated circuit (MMIC), noise figure (NF), N-times, resistive mixer, system gain



Denna post skapades 2011-09-16. Senast ändrad 2017-03-21.
CPL Pubid: 146270

 

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