DocumentCode :
2907062
Title :
A Power Efficient HBT Pulse Generator for UWB Radars
Author :
Cacciatori, Alessio ; Lorenzi, Laura ; Colalongo, Luigi
Author_Institution :
Dipt. di Elettronica per l´´Automazione, Universita degli Studi di Brescia
fYear :
2007
fDate :
27-30 May 2007
Firstpage :
3916
Lastpage :
3919
Abstract :
High-resolution radars require the transmission and reception of extremely high-bandwidth pulses. The generation of such pulses is a challenging task, especially for low power portable applications. In this paper we present a new approach to face this problem. The proposed approach uses a standard negative impedance LC oscillator to generate fully-differential pulses in the 6 to 8GHz frequency range. This circuit does not require pulse-shape filtering, leading to a high power efficiency of the generation process. It can also be easily modified to generate quadrature pulses. It can be used both in ultra-wideband transmitters and correlation receivers, allowing for the implementation of quadrature modulation schemes.
Keywords :
oscillators; pulse generators; radio receivers; radio transmitters; ultra wideband radar; 6 to 8 GHz; correlation receivers; fully-differential pulses; high-resolution radars; power efficient HBT pulse generator; pulse-shape filtering; quadrature modulation schemes; quadrature pulses; standard negative impedance LC oscillator; ulta wideband radars; ultra-wideband transmitters; Filtering; Frequency; Heterojunction bipolar transistors; Impedance; Oscillators; Power generation; Pulse circuits; Pulse generation; Ultra wideband radar; Ultra wideband technology;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Circuits and Systems, 2007. ISCAS 2007. IEEE International Symposium on
Conference_Location :
New Orleans, LA
Print_ISBN :
1-4244-0920-9
Electronic_ISBN :
1-4244-0921-7
Type :
conf
DOI :
10.1109/ISCAS.2007.378550
Filename :
4253538
Link To Document :
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