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This paper presents a new concept for the Doppler sensor for true ground speed measurement. The basic principle is based on a membrane supported double folded slot antenna operating at 77 GHz with a bidirectional radiation characteristic and a Schottky diode for signal mixing and Doppler frequency shift extraction. The sensor was fabricated using silicon micromachining. A dedicated setup was used...
In recent years, there is an increased interest in the use of telecommunications systems operating at V-band frequencies for both military and civil applications. The high atmospheric absorption of microwave signals at 60 GHz is well suited for applications, such as secure communications and wireless local area networks WLAN, where propagation over significant distances is not desirable. Monolithic...
The realization of SIMMWICs (silicon millimeter-wave integrated circuits) for frequencies above 100 GHz is presented. Epitaxial layers grown with molecular beam epitaxy and low-loss microstrip lines allow the implementation of a variety of devices required for basic system-on-chip building blocks. The applied silicon technology using Al/AlNiSi contacts offers excellent integration possibilities. Schottky...
This paper presents the design, fabrication and millimeter wave measurements of a w-band (75-110 GHz) hybrid integrated micromachined receiver, an integrated double-folded slot antenna has been manufactured using silicon micromachining techniques. The receiver includes a flip chipped diode, which is used as a detector and modulator to demonstrate a millimeter wave identification (MMID) system, the...
This paper presents for the first time the design, fabrication and characterization of a GaAs membrane supported millimeter wave receiver that monolithically integrates a Yagi-Uda antenna with a Schottky diode. The design approach includes intensive electromagnetic simulation and modeling. The fabrication processes is based on GaAs micromachining and the Schottky diode is monolithically integrated...
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