[eagle] Re: Eagle Microwave Antenna Arrays -- RF concepts -- quad element RF modules

John B. Stephensen kd6ozh at comcast.net
Mon Apr 2 17:23:44 PDT 2007


The frequencies should converge rapidly. I'm not sure if they would end up 
at a constant phase or wander around each other.

73,

John
KD6OZH

----- Original Message ----- 
From: "Franklin Antonio" <antonio at qualcomm.com>
To: "John B. Stephensen" <kd6ozh at comcast.net>
Cc: <K3IO at verizon.net>; "AMSAT Eagle" <Eagle at amsat.org>
Sent: Monday, April 02, 2007 21:11 UTC
Subject: Re: [eagle] Eagle Microwave Antenna Arrays -- RF concepts -- quad 
element RF modules


> At 12:45 PM 4/2/2007, John B. Stephensen wrote:
>>Ater thinking about this a bit more it seems that the use of multiple PLLs 
>>will be a problem. It will be almost impossible to prevent coupling and 
>>the VCOs will tend to lock to each other.
>
> Nah.  They are "locked to each other" by design.  All running at exactly 
> the same frequency.
> 



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