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A novel oscillator using an array of 25 resonant-tunnelling diodes connected in parallel has delivered an output power of 5mW at 1.18 GHz. Details of the device design and the oscillator circuit are given.<<ETX>>
A resonant-tunnelling diode has oscillated at X-band frequencies in a microwave circuit consisting of a slot antenna coupled to a semiconfocal open resonator. Coupling between the open resonator and the slot oscillator improves the noise-to-carrier ratio by about 36 dB relative to that of the slot oscillator alone in the 100-200 kHz range. A circuit operating near 10 GHz has been designed as a scale...
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