Abstract
The design and measured performance of an integrated dielectric-filled cavity-backed dipole antenna are presented. For structures integrated into high-epsiv <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">r</sub> substrates, antennas of this type exhibit decreased surface wave loss and increased air-side directive gain relative to planar antennas. A single-lobe beam with high gain was achieved by designing the backing cavity to excite predominantly TE <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">10</sub> aperture fields. The antennas are suitable for direct integration on dielectric package surfaces for system-in-a-package (SiP) implementations, and can be fabricated using single-side processing. Prototype cavity-backed dipole antennas were measured at Ka band and demonstrated 10 dB boresight directivity and 92% peak radiation efficiency. The impact of cavity design parameters and scalability to MMIC applications are evaluated numerically using three-dimensional (3-D) electromagnetic simulations
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