bakul1
Newbie level 4
HELLO,
I want to transmit a IQ wideband chirp of 250 MHz bandwidth at 10GHz frequency.Of the available DDS AD9854 is the one with max. 120 MHz bandwidth.
since I want a bandwidth of 250 MHz I need to use PLL to increase the bandwidth. but how will I use PLL ? i need quadrature PLL with same reference clock only then it will have phase coherence. please help me to solve this issue . if I bring my IQ chirp at some IF about I will use a quadrature modulator after it to 10GHz.
But my problem is how to increase the bandwidth of IQ SWEEP from 120 MHz to 250 MHz .
please solve my problem.
THANKS and REGARDS.
I want to transmit a IQ wideband chirp of 250 MHz bandwidth at 10GHz frequency.Of the available DDS AD9854 is the one with max. 120 MHz bandwidth.
since I want a bandwidth of 250 MHz I need to use PLL to increase the bandwidth. but how will I use PLL ? i need quadrature PLL with same reference clock only then it will have phase coherence. please help me to solve this issue . if I bring my IQ chirp at some IF about I will use a quadrature modulator after it to 10GHz.
But my problem is how to increase the bandwidth of IQ SWEEP from 120 MHz to 250 MHz .
please solve my problem.
THANKS and REGARDS.