IEEE802.11b無線網路卡電路設計與測試
IEEE802.11b WLAN Circuits Design and Test
Date Issued
2005
Date
2005
Author(s)
Lin, Yu-De
DOI
zh-TW
Abstract
In this thesis, the design and test of IEEE 802.11b WLAN circuits are described. The circuit blocks consist of baseband processor RF3002, IF and RF transceiver RF2958, power amplifier RF5189, RF filter, RF switches, IF SAW filter and regulators. The circuits are fabricated with four-layer PCB process. The implemented wireless LAN card can provide four kinds of data rates which are 1Mbps(DSSS), 2Mbps(DSSS), 5.5Mbps(CCK), and 11Mbps(CCK) based on IEEE802.11b specification. For the software implementation, the C language code compiled by Keil is downloaded to the microprocessor by the USB interface to control and coordinate the functions between the circuit blocks of WLAN card.
The introduction of IEEE 802.11 WLAN standard is presented in Chapter 1. Chapter 2 describes the specification of the 802.11b WLAN physical layer and circuit system design. The circuit design consisted of baseband processor, IF and RF transceiver, power amplifier, front-end circuit, dc power circuits, PHY interface circuits, MAC control circuits, and link budget are described in Chapter 3. Chapter 4 gives the circuit layout to realize the designed circuit on a four layer PCB. Chapter 5 describes the test results of each circuit and demonstrates the data transmitting and receiving of the developed WLAN cards. Finally, the conclusion is given in the Chapter 6.
Subjects
無線網路卡
傳收機模組
基頻處理器
WLAN
Transceiver Modules
Baseband processor
Type
thesis
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