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Using InP HEMT technologies, we developed transmitter and receiver modules based on impulse radio (IR) architecture that are capable of 10-Gb/s data transmission in W-band frequencies. The new modules achieve ON/OFF keying modulation without using local oscillators, mixers, or other components that had been needed in previous millimeter-band modules. The transmitter, consisting of a 6.5-ps pulse modulator...
A W-band millimeter-wave transmitter and receiver that are based on impulse radio (IR) architecture were developed. The IR-based apparatuses have an optical-fiber input/output interface board that supports multi protocol signals (OC-192 and 10 GbE) and that implements a forward error correction (FEC), enabling 10-Gb/s data transmission both in space and fiber seamlessly. Analyzing an IR-based receiver...
We developed an ON/OFF pulse modulator IC using 0.1-mum-gate-length InP HEMTs for ultra-wideband impulse radio (UWB-IR) communications systems. The IC generated extremely short pulses whose full width at half maximum (FWHM) were 6.5 ps. Furthermore, our new circuit architecture that retimes output pulses at both rising and falling edges made the IC robust against timing fluctuations or jitter. The...
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