Ian White, G3SEK wrote:
You can easily build what you need using single-sided board: a
continuous groundplane, components soldered on top, and connections
made using sticky-backed copper tape

Sorry, that wasn't quite clear (not enough coffee yet this morning).

The continuous groundplane is on the underside of the board. All the SMD
components are on the bare fibreglass side. The SMD components are held
in place by soldering them directly to each other, to the ground links,
to the striplines, and to various other fixed points.

No board etching is required, and this technique will is good to
frequencies well above 1GHz.

The 0.1in stripline width was for standard 0.064in FR-4. You can
obviously refine that calculation if you want, but there's little point
for this particular application.


--
73 from Ian G3SEK 'In Practice' columnist for RadCom (RSGB)
http://www.ifwtech.co.uk/g3sek