I am designing a low-cost ($5) transceiver based remote system, that uses a CC110L or rfm22b type transceiver (i.e. low cost). What are some cost-effective, yet high performance antenna options? My goal here is to maximize range (minimize antenna losses), and range is more important than bit-rate.
Antenna efficiency of >70%, larger is better
Omnidirectional (as much as possible)
Space constraints: must fit within 25cm x 150cm area
The options I'm considering are:
A simple wire seems to be the easiest, but performance might not be good.
An off-the-shelf PCB-mount antenna (SMD chip, helix, etc)
PCB trace antenna
a. whip design
The preferred option here is PCB trace antenna due to cost reasons...so kind of focusing on that.
Using a standard FR-4 2-layer standard-spec PCB, is it possible to design a high-performing PCB trace antenna?
What type of PCB trace antennas would be the best and why? Helical? Whip? Others? Are there any good reference designs or guidelines to design this type of 433MHz PCB trace antenna?