Highly Efficient Front End Direct Conversion Receiver for 28-GHz Wireless Access Point

The manuscript presents the design and characterization of a wideband front-end receiver, based on hollow waveguide technology, for the wireless access point (WAP) applications. The Ka-band receiver is comprised of a low-loss beam-switching antenna network (BSAN) with two-dimensional (2D) scanning p...

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Bibliographic Details
Published in:IEEE access 2021, Vol.9, p.88879-88893
Main Authors: Akbari, Mohammad, Farahani, Mohammadmahdi, Ardakani, Mansoor Dashti, Lalbakhsh, Ali, Zarbakhsh, Saman, Tatu, Serioja Ovidiu, Sebak, Abdel-Razik, Ramahi, Omar M., Denidni, Tayeb A.
Format: Article
Language:English
Subjects:
Antenna array
Antenna arrays
Antenna radiation patterns
Antennas
beam-switching antenna network (BSAN)
Broadband communication
Channel capacity
Couplers
Data transmission
Demodulation
Direct conversion
direct modulation
Extremely high frequencies
Hollow waveguides
homodyne receiver
Insertion loss
Noise levels
Phase error
Phase shift keying
Phase shifters
phase-shift keying (PSK)
Quadratures
Receivers & amplifiers
six port network (SPN)
Waveguides
wireless access point (WAP)
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Summary:The manuscript presents the design and characterization of a wideband front-end receiver, based on hollow waveguide technology, for the wireless access point (WAP) applications. The Ka-band receiver is comprised of a low-loss beam-switching antenna network (BSAN) with two-dimensional (2D) scanning property. For demodulation, the receiver uses an efficient six-port network (SPN) that is composed of four 90° hybrid couplers and a 90° phase shifter. To suppress the phase imbalance on the entire band of interest, 27 GHz to 33 GHz, a frequency-independent phase shifter with a minimum phase error is suggested. The SPN receiver is integrated with antenna-in-package in waveguide technology to decrease the insertion losses and noise levels at the first stages. To determine the SPN phase errors, a theoretical and experimental analysis of real-time wireless data transmission utilizing phase-shift keying (PSK) and quadrature amplitude modulated (QAM) signal is conducted. Besides, channel capacity along with beamformer influence on channel performance improvement are determined.
ISSN:2169-3536
2169-3536
DOI:10.1109/ACCESS.2021.3089582