Doing a little work with PCB antennas for 2.4GHz, I have a question. I have the option to tune the element lengths for resonance or best impedance match. With a simple dipole, resonance would be around 72 ohms. If I tune for best impedance match, then I will be off resonance. Intuitively it has always seemed best to me to tune for resonance and then match the impedance. If I do this, then I end up right on the non-reactive line, and I need both an L and C to transform the impedance down to 50 ohms. Both are lossy. At 2.4 GHz, in very space constrained antennas, everything has costs but they are way less trivial than in less space constrained systems or at lower frequencies. So the question is, from those who have experience here, which is likely to result in overall lower loss in a real implementation, trimming for resonance and matching, or tuning for match and letting it be non-resonant. Alternatively, resonant structures that can be near 50 ohms on a real PCB? --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .