A Fully Integrated 32 Gbps 2x2 LoS MIMO Wireless Link with UWB Analog Processing for Point-to-Point Backhaul Applications
- Resource Type
- Conference
- Authors
- Sawaby, Mahmoud; Grave, Baptiste; Jany, Clement; Chen, Cheng; Kananian, Siavash; Calascibetta, Pierino; Gianesello, Frederic; Arbabian, Amin
- Source
- 2020 IEEE Radio Frequency Integrated Circuits Symposium (RFIC) Radio Frequency Integrated Circuits Symposium (RFIC), 2020 IEEE. :107-110 Aug, 2020
- Subject
- Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Engineering Profession
Fields, Waves and Electromagnetics
MIMO communication
Lenses
Semiconductor device measurement
Phase shift keying
Wireless communication
Antenna measurements
Antenna arrays
mm-wave
5G
eWLB
HDI
SiGe
LoS MIMO
spatial multiplexing
analog processing
- Language
- ISSN
- 2375-0995
In this paper, we demonstrate a proof-of-concept 130 GHz wireless 2x2 line-of-sight (LoS) multi-input multi-output (MIMO) transceiver using fully packaged transmit and receive arrays and scalable analog baseband processing. The link utilizes the Rayleigh criterion to transmit independent wireless streams over a LoS channel. The transmitter (TX) and receiver (RX) chips are fully packaged with integrated mm-wave antennas. The two-element QPSK TX array consumes 432 mW, while the entire four-channel QPSK MIMO RX consumes 630 mW and supports four concurrent 130 GHz mm-wave channels with a simulated passband bandwidth of 20 GHz. Wireless measurements demonstrate 32 Gbps QPSK transmission over 40 cm, allowing for a link efficiency of 83 pJ/ bit/ m and an energy efficiency of 33 pJ/ bit. Scaling the system from the two channels measured here to the four channels supported by the RX chip will double the data rate as well as the range reported.