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A Miniaturized Marchand Balun in CMOS With Improved Balance for Millimeter-Wave Applications

In English

Författare

Summary, in English

The analysis and design of a millimeter-wave passive balun on silicon substrate with small size and good balance is presented. The reason for the imbalance of the balun is analyzed and a novel method using two grounded T bars beneath the coupled lines to tune the balance is proposed. The balun was fabricated in a 65 nm CMOS process, by using broadside coupled lines with small separation, the length of balun is reduced, resulting in a size of only 0.01 mm$^{2}$. In the 57–67 GHz band, the measured amplitude imbalance is less than 0.5 dB and the phase imbalance is less than 1 $^{circ}$. This method for optimizing the imbalance of balun is efficient and it does not increase the size of balun.

Publiceringsår

2014

Språk

Engelska

Sidor

53-55

Publikation/Tidskrift/Serie

IEEE Microwave and Wireless Components Letters

Volym

24

Issue

1

Dokumenttyp

Artikel i tidskrift

Förlag

IEEE - Institute of Electrical and Electronics Engineers Inc.

Ämne

  • Electrical Engineering, Electronic Engineering, Information Engineering

Nyckelord

  • Broadside coupled line
  • CMOS
  • Marchand balun
  • millimeter-wave
  • imbalance

Status

Published

Forskningsgrupp

  • Analog RF

ISBN/ISSN/Övrigt

  • ISSN: 1531-1309