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This paper prepents monolithic microwave integrated circuits (MMIC) employing large size resonant tunneling diode (RTD) with high power at high frequencies. This is achieved by proper design of the resonating inductances which are realized by shorted microstrip transmission lines with low characteristic impedances (Z0 = 10.4 Ω). Two oscillators were fabricated using photolithography. Oscillation frequencies...
This paper presents a G-band (140 −220 GHz) monolithic microwave/ (millimeter-wave) integrated circuit (MMIC) resonant tunneling diode (RTD) oscillator operating at 205.8 GHz with −14.6 dBm output power. The circuit topology employs two InGaAs/AlAs RTDs in parallel. A new RTD epi-layer material design which will greatly benefit micrometer-sized RTD devices for high output power of millimeterwave oscillators...
Devices with negative differential resistance (NDR) regions in their current-voltage (I-V) characteristics such as tunnel diodes (TD) and resonant tunneling diodes (RTDs) have been used for realizing high frequency oscillators. In this paper, a new power combining technique is presented which combines output power through synchronisation of two coupled tunnel diode oscillators. The measured output...
This paper presents a high power (milliwatt) W-band resonant tunneling diode (RTD) oscillator. The oscillator circuit employs two RTD devices in parallel and operates at 75.2 GHz with −0.2 dBm (0.95 mW) output power. To the authors knowledge, this is the highest reported output power for an RTD oscillator at W-band.
Dielectric barrier discharge excitated by pulsed power is a promising approach for producing nonthermal plasma at atmospheric pressure, but pulsed power generators vary widely in performance and should be chosen according to application requirements. In this paper, a repetitive unipolar nanosecond-pulse generator is constructed using resonant charging and one-stage magnetic compression circuits, where...
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