Guide & Q&A
Answers to common antenna questions. Need something specific? Our engineers can provide technical explanations or prototype samples.
How does antenna polarization affect my signal?
Vertically polarized antennas are widely used because they give an omnidirectional signal path, unlike horizontal antennas. With cross polarization (vertical to horizontal) you can lose about 30% of the signal.
How does cable loss affect transmit and receive signals?
A coaxial cable has resistance and reactance, so it weakens the signal along its length. The loss depends on the cable type and is listed in each datasheet. The rule: the longer the cable between transceiver and antenna, the greater the loss.
What is antenna isolation?
Isolation is how well multiple antennas are separated so they don't affect each other. Coupling between antennas can detune them, causing mismatch loss and lower efficiency. Isolation is expressed in dB; 20 to 30 dB or more is typically good.
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