26-03-2012, 02:05 PM
INTRODUCTION INTO RF CIRCUIT DESIGN
lec01.pdf (Size: 264.89 KB / Downloads: 77)
Importance of RF circuit design
– wireless communications (explosive growth of
cell phones)
– global positioning systems (GPS)
– computer engineering (bus systems, CPU,
peripherals exceeding 600 MHz)
Frequency spectrum
• RadioFrequency (RF)
– TV, wireless phones, GPS
– 300 MHz … 3 GHz operational frequency
– 1 m … 10 cm wavelength in air
• MicroWave (MW)
– RADAR, remote sensing
– 8 GHz … 40 GHz operational frequency
– 3.75 cm …7.5 mm wavelength in air
Implementation
• matching networks
• BJT/FET active devices
• biasing circuits
• printed circuit board
• mircostripline realization
• surface mount technology