120-GHz-band Low-noise Amplifier with 14-ps Group-delay Variation for 10-Gbit/s Data Transmission

2013 IEEE 13th Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems

et al. 2013

This paper describes Monolithic microwave integrated circuits (MMICs) and MMIC modules for 120 GHz 10-Gbps or more wireless data communications using ASK and QPSK modulation schemes. Record transmission distance of 5.8 km was established using ASK architecture MMICs at a data rate of 10-Gbps and a carrier frequency of 125 GHz. QPSK modulator and demodulator show that they performs full function in back-to-back test at a carrier frequency of 128 GHz at 10-Gbps. Furthermore, the QPSK chips was improved and integrated with low noise amplifier or power amplifier. In result, this QPSK transceiver chipset showed 22.2-Gbps error-free transmission at an output power of 7 dBm and received power -35 dBm in back-toback measurement.-125 GHz, MMIC, ASK, QPSK, millimterwave.

Section: -Ghz 10-gbps Wireless Link Systemmentioning

confidence: 99%

Broadband InP MMICs for 120 GHz wireless data communications

2013 IEEE 13th Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems

et al. 2013

“…Figure 7 shows the measurement system. To measure the minimum received power, we set a LNA [4] and an amplifier in front of the demodulator module. The MMIC in the LNA module was the Transmittance [dB] same as that used for our current wireless link, and the noise figure was 5.6 dB.…”

Section: Ber Characteristicsmentioning

confidence: 99%

“…To meet these demands, we are developing a 120-GHzband 10-Gbit/s wireless link [1] and MMICs [2][3][4]. The 120-GHz band is promising for wideband wireless links because it may provide sufficient bandwidth with small atmospheric absorption.…”

Section: Introductionmentioning

confidence: 99%

120-GHz-band BPSK modulator and demodulator for 10-Gbit/s data transmission

2009 IEEE MTT-S International Microwave Symposium Digest

et al. 2009

Self Cite

This paper presents a 120-GHz band binary phase shift keying (BPSK) modulator and demodulator fabricated on microwave monolithic integrated circuits (MMICs) for a 10-Gbit/s wireless link. The direct-conversion modulator consists of a 180° hybrid coupler, gain-control amplifiers, and Wilkinson combiner. The delay demodulator has a 100-ps delay line made of coplanar waveguides and a voltage-controlled phase shifter. The modulator MMIC exhibits a static vector error magnitude of 5%. The modulator and demodulator MMICs were mounted in WR-8 waveguide modules to evaluate the characteristics of 10-Gbit/s transmission. A bit error rate (BER) for 10-Gbit/s pseudorandom binary sequence (PRBS) 2 7 -1 data was 10 -12 .

“…To measure the minimum received power, we put a low-noise amplifier (LNA) [5] in front of the demodulator module. The MMIC in the LNA module is the same as the one in our current wireless link, and the noise figure is 5.6 dB.…”

Section: Spectrum and Ber Characteristicsmentioning

confidence: 99%

10-Gbit/s QPSK modulator and demodulator for a 120-GHz-band wireless link

2010 IEEE MTT-S International Microwave Symposium

et al. 2010

Self Cite

This paper describes a 120-GHz-band quadrature phase shift keying (QPSK) modulator and demodulator fabricated on microwave monolithic integrated circuits (MMICs) for a 10-Gbit/s wireless link. The MMICs were fabricated using O.I-llm-gate InP HEMTs and coplanar waveguides. The direct conversion modulator consists of hybrid couplers, gain-control amplifiers, and combiners. The delay demodulator has a 200-ps delay line, distribution amplifiers, a voltage-controlled phase shifter, and detectors. The modulator and demodulator MMICs were mounted in WR-8 waveguide modules to evaluate the characteristics of lO-Gbit/s transmission. The bit error rate (BER) for 10-Gbit/s pseudorandom binary sequence (PRBS) 2 7 _1data was smaller than 10-1°. Index Terms-Millimeter-wave circuits, modulator, demodulator, MMICs.