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BPSK MODULATOR DESIGN - RF Cafe Forums
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harsh Post subject: BPSK MODULATOR DESIGN Posted: Fri Oct 07, 2005
9:46 pm Hi friends,
I want to design BPSK modulator for
my communication system.I am very new to this stuff.I want to modulate
2 signals like one is information signal 1 khz freq while other is PN
code 1 MHz freq ,and i want to modulate this signal using BPSK technique,but
i dont have any idea about how to implement BPSK in hardware.
Could you please let me know that how can i achive this BPSK modualtion
using hardware?could you please send me some basic idea, circuit or
somthing which can help me to move ahead ?
Thanks Harsh
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Guest Post subject: Posted: Sat Oct 08, 2005
12:30 am Step number 1.
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Guest Post subject:
Posted: Sat Oct 08, 2005 12:34 am Buy a 1k ohm resistor.
Let me know when you've done that and I'll tell you the next step.
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Another Guest Post subject: BPSKPosted: Sun
Oct 09, 2005 7:02 pm You need either a double-balanced mixer (see
www.minicircuits.com) or its digital equivalent, the exclusive-OR gate.
Exor your 1kbps data with your 1 Mbps PN stream, then go to your modulator
(dbm or exor) at whatever frequency you need..
Good Luck!
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harsh Post subject: BPSK modulatorPosted: Mon
Oct 10, 2005 3:26 am Anonymous wrote: Buy a 1k ohm resistor.
Let me know when you've done that and I'll tell you the next step.
Hi ,I have 1 K resistor with me. could u please let me know
the next steps in detail?
Thanks Harsh
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harsh Post subject: bpsk modulatorPosted: Mon Oct 10, 2005 3:50
pm Hi guest,
i do have 1 K resistor wid me cud u please let
me know the next step?
Thanks harsh
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Can - Helper Post subject: Posted: Sun Oct 16, 2005 9:36 pm
Use double balanced mixer (DBM) with DC - Fmax response. Also find
out more about DC offset.
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N2HMM Post subject:
BPSK ModPosted: Sat Oct 29, 2005 1:08 pm Did you ever try using
a MAXIM device such as the MAX2900? They have an evaluation board available.
http://pdfserv.maxim-ic.com/en/ds/MAX2900-MAX2904.pdf
It's better then a 1K resistor.
John
Posted 11/12/2012
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