论文信息 - 20 GHz Wavelet Generator Using a Gated Tunnel Diode

20 GHz Wavelet Generator Using a Gated Tunnel Diode

We demonstrate the use of a GaAs-AlGaAs gated tunnel diode (GTD) in an ultra-wideband (UWB) wavelet generator. An inductor is integrated to form an oscillator circuit, which is driven by the negative differential conductance property of a GTD. It is demonstrated that as the gate tunes the magnitude of the output conductance, the oscillator may be switched on and off, creating short RF pulses. The shortest pulses generated are 500 ps long, the highest output power for the free running oscillator is -4.1 dBm, and the highest oscillation frequency is 22 GHz. Analytical expressions based on the van der Pol equation describing the pulse length and amplitude are presented. This technique is applicable for high frequency impulse radio UWB implementations.

M. Egard | M. Arlelid | E. Lind | G. Astromskas | L.-E. Wernersson

[1] A. Chandrakasan,et al. Gaussian pulse Generators for subbanded ultra-wideband transmitters , 2006, IEEE Transactions on Microwave Theory and Techniques.

[2] Moe Z. Win,et al. Ultra-wide bandwidth time-hopping spread-spectrum impulse radio for wireless multiple-access communications , 2000, IEEE Trans. Commun..

[3] Mikael Egard,et al. Gated tunnel diode in oscillator applications with high frequency tuning , 2009 .

[4] Lars-Erik Wernersson,et al. PLANARIZATION OF EPITAXIAL GAAS OVERGROWTH OVER TUNGSTEN WIRES , 1996 .

[5] Y. Nakasha,et al. RF Chipset for Impulse UWB Radar Using 0.13-$\mu{\hbox {m}}$ InP-HEMT Technology , 2006, IEEE Transactions on Microwave Theory and Techniques.

[6] E. Lind,et al. Resonant tunneling permeable base transistors with high transconductance , 2004, IEEE Electron Device Letters.

[7] W. Hirt,et al. Low-power ultra-wideband wavelets generator with fast start-up circuit , 2006, IEEE Transactions on Microwave Theory and Techniques.

[8] Woo Foung Chow,et al. Principles of Tunnel Diode Circuits , 1964 .

[9] F. Danneville,et al. 60 GHz UWB Transmitter for Use in WLAN Communication , 2007, 2007 International Symposium on Signals, Systems and Electronics.