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  1. robroy1

    Pcb strip feed to pcb mounted ceramic patch (GPS)

    Thanks Higgler! That was written so that even I could understand it! I recall seeing an antenna (might have been called a reference antenna) that had circular elements around it which it was claimed reduced or eliminated the effect of multipath. I want to think that there is some kind of...
  2. robroy1

    Pcb strip feed to pcb mounted ceramic patch (GPS)

    Thanks Higgler! >> The patch can shift frequency with smaller ground planes. I dont understand the mechanism that would cause the detuning, and which way would the patch detune? I thought that the ground plane essentially provides the beamwidth/directivity of the antenna not the tuning. The...
  3. robroy1

    Pcb strip feed to pcb mounted ceramic patch (GPS)

    Thanks Comcokid! Right off I need to locate the specific dialectric constant for the vendor that I will be using. Very good direction to start me down the road to something workable.. Does the transmission velocity change dramatically with frequency? Regarding the challenge to route...
  4. robroy1

    Pcb strip feed to pcb mounted ceramic patch (GPS)

    Hello; I am a new dog sniffing around for a scent of where to go on this subject....yes, this is in the line of duty rather than pure speculative fun..! I am using a ceramic patch antenna, nice Q at 1575.42 L1 GPS frequency, return loss of 12-15dB (coaxially fitted for test), and I desire to...

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