Abstract
151 GHz CMOS transmitter and receiver are presented for ultra-short distance (~1 mm) contactless connection and plastic waveguide communications. To continue to scale the communication bandwidth, the 4-level pulse amplitude modulation (PAM-4) is utilized by implementing a current-mode PAM-4 modulator in the transmitter. The transmitter and receiver suffer non-linear characteristics and create amplitude distortions on PAM-4 signaling. A digital pre-distortion circuit is integrated in the PAM-4 modulator to correct such system non-idealities. 151 GHz antennas are realized on FR4HR substrate and used as air-to-air/chip-to-waveguide couplers. On top of contactless connection and plastic ribbon waveguide, plastic-embedded PCB channels are introduced by exploiting copper-coated slots on PCB and plastic ribbons to communicate through PCB substrates. The transmitter and receiver are fabricated in 28-nm CMOS process. The demonstrated system consumes 60.2 mW under 1.2 V supply while transferring 30 Gb/s of PAM-4 data, achieving 2.01 pJ/bit energy efficiency.
| Original language | English |
|---|---|
| Title of host publication | 2019 IEEE MTT-S International Microwave Symposium, IMS 2019 |
| Pages | 673-676 |
| Number of pages | 4 |
| ISBN (Electronic) | 9781728113098 |
| DOIs | |
| State | Published - Jun 2019 |
| Event | 2019 IEEE MTT-S International Microwave Symposium, IMS 2019 - Boston, United States Duration: 2 Jun 2019 → 7 Jun 2019 |
Publication series
| Name | IEEE MTT-S International Microwave Symposium Digest |
|---|---|
| Volume | 2019-June |
| ISSN (Print) | 0149-645X |
Conference
| Conference | 2019 IEEE MTT-S International Microwave Symposium, IMS 2019 |
|---|---|
| Country/Territory | United States |
| City | Boston |
| Period | 2/06/19 → 7/06/19 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
Keywords
- 151 GHz transmitter/receiver
- PAM-4 modulation
- contactless communication
- digital pre-distortion
- plastic waveguide
- plastic-embedded PCB
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