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.

Register Log in

quadrifilar helix antenna radiation problem

Status
Not open for further replies.
B

baby_1

Advanced Member level 1
Joined
Dec 3, 2010
Messages
415
Helped
1
Reputation
2
Reaction score
1
Trophy points
1,298
Activity points
4,277
Hello
Here is my design
51.JPG
and this is it's radiation pattern
52.JPG
but I want to have a backfire antenna.I use this diagram(but my helix wire diameter is 1.7mm instead of 1.5mm)
qfhelix.gif
Practical sample:
QFH_antenna.jpg
how can I improve my design to have a backfire and good gain?
 
Last edited:

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top