Krinal
Newbie level 3
rfid amplifier
i am doing rfid project and i have designed one power amplifier which converts 200mW to 4W(atleast). its configuration is class a . Ld=560nH INPUT SIDE HAS RESONANT CIRCUIT OF 120pF AND 1uH OUTPUT HAS IMPEDANCE MATCHING NETWORK WHICH TERMINATES ON 50 OHMS THE PROBLEM IS IT TAKES EXCESSIVE CURRENT AND LOADS THE LABORATORY POWER SUPPLY MOREOVER IT HAS OUTPUT OF ONLY 15V WHICH CORRESPONDS TO 1W OF POWER ONLY.
MY QUESTION IS CAN WE USE SIMPLY A VOLTAGE AMPLIFIER TO DRIVE AN ANTENNA OF 1mt BY 1mt LOOP ?
IF NOT, CAN SOMEBODY HELP ME WITH THIS CIRCUIT OR CAN SOMEBODY HAS A 200mW-5W POWER AMPLIFIER CIRCUIT ALREADY WORKED OUT?
Added after 11 minutes:
HEY AND ALSO I AM USING IT IN 13.56MHz FREQUENCY AND IRFD110 IS THE POWER MOSFET
i am doing rfid project and i have designed one power amplifier which converts 200mW to 4W(atleast). its configuration is class a . Ld=560nH INPUT SIDE HAS RESONANT CIRCUIT OF 120pF AND 1uH OUTPUT HAS IMPEDANCE MATCHING NETWORK WHICH TERMINATES ON 50 OHMS THE PROBLEM IS IT TAKES EXCESSIVE CURRENT AND LOADS THE LABORATORY POWER SUPPLY MOREOVER IT HAS OUTPUT OF ONLY 15V WHICH CORRESPONDS TO 1W OF POWER ONLY.
MY QUESTION IS CAN WE USE SIMPLY A VOLTAGE AMPLIFIER TO DRIVE AN ANTENNA OF 1mt BY 1mt LOOP ?
IF NOT, CAN SOMEBODY HELP ME WITH THIS CIRCUIT OR CAN SOMEBODY HAS A 200mW-5W POWER AMPLIFIER CIRCUIT ALREADY WORKED OUT?
Added after 11 minutes:
HEY AND ALSO I AM USING IT IN 13.56MHz FREQUENCY AND IRFD110 IS THE POWER MOSFET