Broadband inductorless vector modulator IC for localisation and communication systems | Zendy

Wagner J. | Zendy; Joram N. | Zendy; Wolf R. | Zendy; Ellinger F. | Zendy

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Broadband inductorless vector modulator IC for localisation and communication systems

Author(s) -

Wagner J.,

Joram N.,

Wolf R.,

Ellinger F.

Publication year - 2015

Publication title -

electronics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.375

H-Index - 146

ISSN - 1350-911X

DOI - 10.1049/el.2015.0343

Subject(s) - broadband , electronic engineering , computer science , modulation (music) , optical modulator , physics , electrical engineering , telecommunications , optoelectronics , engineering , phase modulation , acoustics , phase noise

An inductorless vector modulator‐based radio frequency (RF) weighting circuit working from 1 to 10 GHz is presented. Amplitude and phase interdependencies were strongly reduced employing optimised attenuators. The vector modulator features a 360° phase and more than 40 dB amplitude control range with a root mean square phase and amplitude error of only 6° and 0.16 dB, respectively. These features make it a suitable candidate for communication and localisation diversity frontends in the 2.4 and the 5.9 GHz industrial, scientific and medical (ISM) bands. The circuit was fabricated in a 180 nm BiCMOS technology and contains an inter‐integrated circuit (I 2 C) control interface and digital‐to‐analogue converters. It consumes 87 mW and requires an area of only ≃0.2 mm 2 .

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