Telecommunication Systems:

1
Telecommunication Systems    Basic Knowledge
formanagement

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2
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• 5. ?????????
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3
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4
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5
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6
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• ???????????????????????????10dB?????????????????
• ????????????? 40dB
• ????????????????????? P110mW
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7
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• P1 10mW 10dBm
• P3 P1-C 10dBm-10dB 0dBm 1mW
• D(dB) 40dB 10log(P3/P4) P3(dB)-P4(dB)
• P4 P3(dB)-D(dB) 0dBm-40dB -40dBm 0.0001mW
• P2 P1-P3-P4 9mW 9.5dBm

8
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9
???????????? Power Divider

• ?????2 ???3 ???? isolate

10
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Low pass filter
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Low pass filter
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Low pass?
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High pass filter
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High pass filter
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Band pass filter
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Band pass filter
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Linear graph
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ISOLATORS AND OSCILLATORS
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Antenna
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Antenna Pattern
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Antenna Pattern
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Antenna Pattern
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Antenna Pattern
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Antenna Pattern
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Antenna Type
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(No Transcript)
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Microstrip Antenna
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CIRCULATORS
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Down converter
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Up converter
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Mixer
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Switch
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Amplifier