Title :
A 17-tap 3.5 Gbps finite impulse response pulse shaping filter for 60 GHz transmitter with QPSK modulation
Author :
Zhao, Jinshu ; Hellfeld, Marcus ; Wolf, Thomas ; Ellinger, Frank ; Le Ye
Author_Institution :
Dept. of Circuit Design & Network Theor., Dresden Univ. of Technol., Dresden, Germany
Abstract :
A 17-tap 3.5 Gbps finite impulse response (FIR) pulse shaping filter for 60 GHz transmitters with quadrature phase-shift keying (QPSK) modulation is presented. Measurement results show that an attenuation of 19 dB at 2.2 GHz is achieved with cutoff frequency of 1.76 GHz which enable the 60 GHz transmitter to comply with the stringent spectrum mask requirement. No digital-to-analog converters (DACs) are needed in the proposed approach performed in the analog baseband. The dc power of 3.3 V × 300 mA (55 mA without buffers) is competitive compared to conventional DACs not providing filtering functionality. Implemented in a 0.25 μm SiGe HBT technology, the fully integrated circuit consumes an area of 1.6mm2.
Keywords :
FIR filters; heterojunction bipolar transistors; monolithic integrated circuits; quadrature phase shift keying; silicon compounds; transmitters; FIR pulse shaping filter; HBT technology; QPSK modulation; SiGe; bit rate 3.5 Gbit/s; current 300 mA; digital-to-analog converters; finite impulse response pulse shaping filter; frequency 2.2 GHz; frequency 60 GHz; gain 19 dB; integrated circuit; quadrature phase-shift keying; size 0.25 mum; stringent spectrum mask requirement; transmitter; voltage 3.3 V; Attenuation; Baseband; Clocks; Cutoff frequency; Finite impulse response filter; Power harmonic filters; Transmitters;
Conference_Titel :
ESSCIRC, 2010 Proceedings of the
Conference_Location :
Seville
Print_ISBN :
978-1-4244-6662-7
DOI :
10.1109/ESSCIRC.2010.5619896
