Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

problematic parasitic level of radiation in array network

Status
Not open for further replies.

yefj

Advanced Member level 4
Joined
Sep 12, 2019
Messages
1,070
Helped
1
Reputation
2
Reaction score
3
Trophy points
38
Activity points
6,362
Hello,I have built an array in which i get the radiation pattern distorted.
i am planning to remove the elements to tests purely the network for radiation leakage.
How to know if my radiation leakage level is problematic?
Thanks.
 

Are you sure this is a "leakage" problem rather than a phase
shifter problem? How are you making that call?

I would expect "leakage" to be a low and somewhat beam-
forming-independent baseline (certainly if you kept total
panel power fixed, while moving the "steering") if all elements
are indentical and only beam forming routing differs.

Full power, but where you didn't send it, quite, is probably
phase shifters * routing. What you see far from beam center,
probably leakage.

A thing to look for, is unshielded stubs and not-perfectly-equal
routing of differential RF (if any). Time / phase skew can ruin
the expected cancellation of differential signals' common
mode, "in the moment", producing little "error wavees" on
every cycle - in effect these are also a phased array, with
uncontrolled phase and summing to an unknown sub-beam
magnitude and direction(s).
 

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top