Mirek Kasal OK2AQ published a very interesting design of a quad array of patch antennas for S-Band Uplink combined with an standard LNB. Indeed the big advantage is, that the LNB field-of-view will not be shadowed by the rest...
for more look here at Mirek's webpage:
http://www.urel.feec.vutbr.cz/…eed/2_4%20GHz%20feed.html
and
Very interesting design. Also, a very interesting comment (in the conclusions of the pdf) regarding the use (i.e. it's not practical) of 'standard' FR4.
Now, if only some enterprising soul would do a bulk order of the pcb!
Hi everybody,
the CuClad217 base material is from Rogers.
The material specification are the following:
Rogers Part No.: 217 DH=2.17 18X12 H1/H1 0620+-002/DI
Item Number 3064270
DI 2.17
Copper lamination 35um/35um
Size 18x12 inch
Minimum order USD $300
The cost of the first 9 pcbs is approx. 500 $ US
Lead time 20-30 days
Stock location: Delaware USA
The base material is coming without any photo positive lacquer for etching.
Due to the cost we are not following the project for now.
If someone wants us to follow that project ideas let us know.
DM5TU - sTef and DH4YM - Dirk
Non commercial PCBA-Service for RADIOHAMS
