orpheus
Junior Member level 3
tsa5055
Dear friends.
i'm a newbie in RF design business. now my jos is designing 1000-2400 mhz wireless camera system. i have many experineces at microcontrollers video signals and 433 mhz ism transmitters but still i need advices about 2.4 ghz band.
i'm using PLL satellite tuners for a receiver i designed IF circuit to seperate video and audio and it works very well so i dont have any trouble in my receiver stage. that tuners works in 850-2450 mhz and tsa5055 based local osc and pretty cheap here ( 4$ )
my final output power is will be 50mw 100mw level. i need to achieve 300 meter distance in outside and 100 meters in buildings.
1- which type antenna do u recommend to me receiver and transmistter side i'm very confused because the bandwith is very big ? i think to use
1000 - 1600 mhz band to avoid gsm.but bandwith is still 600mhz. is the pcb planar antennas suitable ?
2- which antenna design software and papers do i need to know ?
3- what parameters i need to ask my pcb manufacturer to make rf
calculations in PCB stage ?
4- is the tuners sentivity enaugh this systems or do i need to add another
input stage tuner ?
5- i think to build pll based tansmitter and using tsa5055 because cheap and easy to use is there any fairly cheap ready to use VCO advice.
i have used GSM vco's but they have very limited bandwith as you know
6- any advice for power output stage transistor or cheap MMIC ?
Thank you for all answers
i hope troubles rf desings all of you
cengiz/istanbul
Dear friends.
i'm a newbie in RF design business. now my jos is designing 1000-2400 mhz wireless camera system. i have many experineces at microcontrollers video signals and 433 mhz ism transmitters but still i need advices about 2.4 ghz band.
i'm using PLL satellite tuners for a receiver i designed IF circuit to seperate video and audio and it works very well so i dont have any trouble in my receiver stage. that tuners works in 850-2450 mhz and tsa5055 based local osc and pretty cheap here ( 4$ )
my final output power is will be 50mw 100mw level. i need to achieve 300 meter distance in outside and 100 meters in buildings.
1- which type antenna do u recommend to me receiver and transmistter side i'm very confused because the bandwith is very big ? i think to use
1000 - 1600 mhz band to avoid gsm.but bandwith is still 600mhz. is the pcb planar antennas suitable ?
2- which antenna design software and papers do i need to know ?
3- what parameters i need to ask my pcb manufacturer to make rf
calculations in PCB stage ?
4- is the tuners sentivity enaugh this systems or do i need to add another
input stage tuner ?
5- i think to build pll based tansmitter and using tsa5055 because cheap and easy to use is there any fairly cheap ready to use VCO advice.
i have used GSM vco's but they have very limited bandwith as you know
6- any advice for power output stage transistor or cheap MMIC ?
Thank you for all answers
i hope troubles rf desings all of you
cengiz/istanbul