Wide frequency band radio frequency front end module
The utility model discloses a wide frequency band radio frequency front end module, which comprises a power supply module, also comprises a transmitting-receiving antenna, a band-pass filter I, a low noise amplifier, an attenuator, an electric adjustable filter, an intermediate frequency local oscil...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model discloses a wide frequency band radio frequency front end module, which comprises a power supply module, also comprises a transmitting-receiving antenna, a band-pass filter I, a low noise amplifier, an attenuator, an electric adjustable filter, an intermediate frequency local oscillation, a frequency mixer I for frequency mixed processing a signal outputted by the electric adjustable filter and an intermediate frequency local oscillation signal outputted by the intermediate frequency local oscillation, an acoustic surface filter, a second intermediate frequency local oscillation, a frequency mixer II for frequency mixed processing a signal outputted by the acoustic surface filter and a second intermediate frequency local oscillation signal outputted by the second intermediate frequency local oscillation, a band-pass filter II, a VGA variable gain amplifier and a control module which are connected in turn. The utility model has advantages of small body type, low power consumption, reasonable |
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