Title :
Performance Analysis of Bootstrap Transimpedance Amplifier For Large Windows Optical Wireless Receiver
Author :
Idrus, S.M. ; Ngajikin, N. ; Malik, N. N. Nik Abd ; Aziz, S.I.A.
Author_Institution :
Fac. of Electr. Eng., Univ. Teknologi Malaysia
Abstract :
Due to optical wireless link power budget considerations, the receiver is required to have a large collection area. One of the main noise mechanisms in wideband preamplifiers employing large area detectors is the noise due to the low pass filter formed by the detector capacitance and the input impedance to the preamplifier. Typical large photodetection area commercial detectors has capacitance are around 100-300 pF compared to 50pF in fiber link. Hence, techniques to reduce the effective detector capacitance are required in order to achieve a low noise and wide bandwidth design. In this paper analysis on the bootstrap transimpedance amplifier (BTA) for input capacitance reduction is reported. This technique offers the usual advantages of the transimpedance amplifier together with an effective capacitance reduction technique for optical wireless detector
Keywords :
bootstrap circuits; low-pass filters; optical links; optical receivers; photodetectors; preamplifiers; radio receivers; wideband amplifiers; 50 pF; bootstrap transimpedance amplifier; capacitance reduction technique; input capacitance reduction; low pass filter; noise mechanisms; optical wireless detector; optical wireless receiver; performance analysis; wideband preamplifiers; Capacitance; Detectors; Optical amplifiers; Optical filters; Optical noise; Optical receivers; Performance analysis; Preamplifiers; Semiconductor optical amplifiers; Stimulated emission; Bootstrap; Transimpedance amplifier; Wireless optical communication; photodetector;
Conference_Titel :
RF and Microwave Conference, 2006. RFM 2006. International
Conference_Location :
Putra Jaya
Print_ISBN :
0-7803-9745-2
Electronic_ISBN :
0-7803-9745-2
DOI :
10.1109/RFM.2006.331117
