Abstract
Performances of high-speed switches operating as terahertz on-off-keying (OOK) modulators are reported. Two types of switches, a passive shunt switch and an amplifier switch, are fabricated using 0.25- \mu \text{m} InP double heterojuction bipolar transistor (DHBT) technology. Small-signal tests show that the amplifier switch possesses superior on-off ratio, but the passive switch has broader bandwidth and smaller group delay ripples. A modulator test setup is built with 20-dB path loss between the transmitter and the receiver. The results indicate that carrier power levels of 14 dBm for the shunt switch and 8 dBm for the amplifier switch are required for 20-Gb/s OOK modulation with bit error rate (BER) of 10-2 at 290 GHz.
Original language | English |
---|---|
Article number | 8691541 |
Pages (from-to) | 360-362 |
Number of pages | 3 |
Journal | IEEE Microwave and Wireless Components Letters |
Volume | 29 |
Issue number | 5 |
DOIs | |
Publication status | Published - 2019 May |
Bibliographical note
Publisher Copyright:© 2001-2012 IEEE.
Keywords
- InP double heterojuction bipolar transistor (DHBT)
- terahertz on-off -keying (OOK) modulator
- terahertz switch
ASJC Scopus subject areas
- Condensed Matter Physics
- Electrical and Electronic Engineering