Internal (Embedded) Antennas
For elegance of styling and mechanical reliability, nothing excels the well-engineered internal (embedded) antenna. Since this type of antenna pushes the limits of antenna design technique, internal (embedded) antennas they have to be planned, carefully analyzed, and custom-designed to the product. Since internal (embedded) antennas are usually co-developed with a product that is likewise under development, close co-operation between the antenna designer and the product designer is required to accommodate the following issues:
Antenna size and volume
Antenna location on the product
Variations in dielectric loading (essential for hand-held products)
Counterpoise radiating currents
Plastic type and thickness
Antenna qualification and certification
Process qualification and certification
Southwest Antennas has over a decade of successful internal antenna design experience and specializes in supporting the small to medium size product developer who needs a comprehensive program of antenna design, product co-development, certification testing, and production support.
Broad Band and Multi Band Internal (Embedded) Antennas
Designing an internal (embedded) antenna for broad band or multi-band use requires careful attention to counterpoise (ground plane) impedance and its effects on the radiation properties of the product as a whole. In brief, it is the counterpoise (ground plane) that is responsible for the great majority of the radiation and the internal antenna serves mostly as decoupled reactive load.
Southwest Antennas is a world expert in internal (embedded) antenna design and is available to provide the small and medium size product developer with the skills and techniques usually available only to very large wireless companies.
The attached article was written by our Chief Engineer and provides some useful insights into the technical issues of internal (embedded) antenna design.
Design of Multi-Band Internal Antennas
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