Transmitter and Receiver Circuits for a High-Speed Polymer Fiber-Based PAM-4 Communication Link
Artikel i vetenskaplig tidskrift, 2022

A high data rate RF-DAC and a power detector (PD) are designed and fabricated in a 250 nm indium phosphide (InP) double heterojunction bipolar transistor (DHBT) technology. A communication link using the Tx-Rx over polymer microwave fiber (PMF) is measured. The link consists of a pulse amplitude modulation (PAM) modulator and a PD as a demodulator, as well as a one-meter-long dielectric waveguide. The working frequency range of the complete link is verified to be 110–150 GHz. The peak output power of the PAM modulator is 5 dBm, and it has a −3 dB bandwidth of 43 GHz. The PD consists of a parallel connected common emitter configured transistor and a common base configured transistor to suppress the odd-order harmonics at the PD’s output, as well as a stacked transistor to amplify the output signal. Tx and Rx chips, including pads, occupy a total area of only 0.83 mm2. The PMF link can support a PAM-4 signal with 22 Gbps data transmission, and a PAM-2 signal with 30 Gbps data transmission, with a bit error rate (BER) of <10−12, with demodulation performed in real time. Furthermore, the energy efficiency for the link (Tx + Rx) is 4.1 pJ/bit, using digital data input and receiving PAM-2 output (5.6 pJ/bit for PAM-4).

Författare

Frida Strömbeck

Chalmers, Mikroteknologi och nanovetenskap, Mikrovågselektronik

Mingquan Bao

Chalmers, Mikroteknologi och nanovetenskap, Mikrovågselektronik

Zhongxia Simon He

Chalmers, Mikroteknologi och nanovetenskap, Mikrovågselektronik

Herbert Zirath

Chalmers, Mikroteknologi och nanovetenskap, Mikrovågselektronik

Sensors

1424-8220 (ISSN) 1424-3210 (eISSN)

Vol. 22 17

Ämneskategorier

Annan geovetenskap och miljövetenskap

Atom- och molekylfysik och optik

Biomedicinsk laboratorievetenskap/teknologi

DOI

10.3390/s22176645

PubMed

36081103

Mer information

Senast uppdaterat

2023-10-27