Details

Autor(en) / Beteiligte

• Karashima, Koichi
• Yokoyama, Ryo
• Shiraishi, Masato
• Suzuki, Safumi
• Aoki, Satoshi
• Asada, Masahiro

Titel

Measurement of Oscillation Frequency and Spectral Linewidth of Sub-Terahertz InP-Based Resonant Tunneling Diode Oscillators Using Ni--InP Schottky Barrier Diode

Ist Teil von

• Japanese Journal of Applied Physics, 2010-02, Vol.49 (2), p.020208-020208-3

Ort / Verlag

The Japan Society of Applied Physics

Erscheinungsjahr

2010

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• We report on the measurement of oscillation frequency and spectral linewidth of sub-terahertz GaInAs/AlAs resonant tunneling diode (RTD) oscillators by harmonic heterodyne detection using a Ni--InP Schottky barrier diode integrated with a bow-tie antenna. For an RTD oscillating at 550 GHz and having an output power ${\leq}1$ \mbox{$\mu$}W, the measured spectral linewidth was at most 10 MHz; this value is in consistent with that obtained theoretically. A narrow linewidth is expected for a device having high output power and $Q$-factor. We also accurately measured the frequency change with changing bias voltage for the RTD oscillator; this result is useful for frequency modulation and can be applied to the phase-locked loop system.