Title :
Receiver block of antenna amplifier for WLAN systems in 5 GHz band
Author :
Jesionkowski, Wojciech ; Nyka, Krzysztof
Author_Institution :
Gdansk Univ. of Technol., Narutowicza
Abstract :
Bidirectional antenna amplifiers (BDA) are often used to extend the range of connections in wireless local area networks (WLAN). This paper presents the theory, design procedure and implementation of receiver part of a bidirectional amplifier (BDA) for the 5GHz WLAN systems in 802.11a and HiperLAN-2 standards. Only the blocks that affect the receiver path parameters are considered. In order to reduce the amplifier cost all its circuits are made on FR4 substrate. Since OFDM modulation used in 802.11a is very sensitive to harmonic and intermodulation distortions, two techniques of LNA linearity improvement are implemented.
Keywords :
OFDM modulation; harmonic distortion; intermodulation distortion; low noise amplifiers; microwave antennas; radio receivers; wireless LAN; HiperLAN-2 standard; IEEE 802.11a standard; LNA linearity improvement; OFDM modulation; WLAN system; bidirectional antenna amplifier; frequency 5 GHz; harmonic distortion; intermodulation distortion; receiver block; wireless local area network; Circuits; Costs; Dielectric substrates; Insertion loss; Interference; Noise figure; Receiving antennas; Switches; Transmission line measurements; Wireless LAN;
Conference_Titel :
Microwaves, Radar & Wireless Communications, 2006. MIKON 2006. International Conference on
Conference_Location :
Krakow
Print_ISBN :
978-83-906662-7-3
DOI :
10.1109/MIKON.2006.4345222
