800-1200 MHz LPDA Design

Status
Not open for further replies.

strotta

Newbie
Joined
Jun 6, 2018
Messages
5
Helped
0
Reputation
0
Reaction score
0
Trophy points
1
Activity points
44
Hi guys!

I am designig a RF Tracker (basically a small radar). For this I need make a very directional Antenna (and small).

I tried with a PCB Patch Array but the S11 is very narrow (is only matched to specific frequency).

A teacher suggest me to build a PCB LPDA. With this I achieved more BW but the S11 presents a lot of variation.

I attached a photos.




Any suggestion?

Thanks!


Santiago
 

Doesn't like a reasonably designed and matched LDPA. -10 dB (magnitude 0.3) or better -20 dB should be feasible, particularly for the intended small frequency range. Even a regular yagi antenna should perform better over the 0.8 to 1.2 GHz range.
 

Hi!

I can achieve a good response to specific frequencies with the LPDA but I need a similar response between 800-1200MHz.
I adjust the elements to zoom in these "notch responses" but fails because when the response of a element is close to each other there are phase problems.

I need to know if is possible achieve a good and similar response with this antenna made in a PCB.

Thanks!
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…