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In this paper we propose a broadband equivalent circuit model of coupled integrated antennas using a generalized Foster approach. A large-signal multi-harmonic X-parameter model representation of On-Chip Schottky Diodes is derived for effective Antenna-Detector Co-Simulation, Co-Design and Co-Verification. Concurrent optimization of the Schottky Diode arrays geometry and large-signal electrical performances...
This paper reports on the impact of antenna impedance frequency characteristics on a broadband low-NEP operation of THz MOSFET direct detectors. New Si-lens integrated high-impedance on-chip ring antennas were developed based on a systematic co-design procedure with MOSFET device. They allowed achieving the world record values both in terms of responsivity and noise equivalent power for detector arrays...
Diode detectors and thermocouple detectors are conventionally used to measure electromagnetic field strength. Both detectors have some disadvantages for applications where a fast response and a high dynamic range is required. The diode detector is limited in dynamic range. The dynamic range is important when considering modern pulsed wireless systems with a high peak-average ratio. The thermocouple...
This paper reports on co-design between CMOS direct detectors and silicon lens-integrated on-chip antennas. Due the appropriate impedance characteristics of the differentially driven antenna, broadband detector operation over multiple hundred GHz centered around 900 GHz could be achieved. The overall pixel layout is fully compatible with an industry qualified CMOS technology.
Impulse UWB transmitter/receiver (T/R) MMIC modules have been developed using InGaP/GaAs HBT MMIC technology. The modules consist of an impulse generator, an impulse detector, amplifiers, and self-complementary antennas, all in a differential mode. In these modules, UWB impulse signals with a frequency spectrum of more than 9GHz are directly generated from input baseband digital signals using the...
An adaptive antenna-tuning units (AATU) utilizing analog mismatch detection and mixed-signal matching-state search circuits operating in a frequency band from 850 MHz to 2 GHz is presented. The fully integrated AATU IC is fabricated in a 0.18 mum 6-layer metal CMOS process.
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