Antenna Design Guide

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Document No. 001-91445 Rev. *B

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Figure 1. Typical Short-Range Wireless System

A well-designed antenna increases the operating distance of the wireless product. The more power it can transmit

from the radio, the larger the distance it can cover for a given packet error rate (PER) and receiver sensitivity.

Similarly, a well-tuned radio in the receiver side can work with minimal radiation incident at the antenna.

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Antenna Basics

An antenna is basically a conductor exposed in space. If the length of the conductor is a certain ratio or multiple of

the wavelength of the signal

fed to antenna is radiated into free space.

Figure 2. Dipole Antenna Basic