(redirected from Aperture-Coupled Patch Antenna)
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References in periodicals archive ?
The aperture-coupled patch antenna is the fundamental part of the proposed antenna.
In the perpendicular-fed, aperture-coupled patch antenna,[3] shown in Figure 5a, a microstrip line printed on the feed substrate turns into a coplanar stripline and couples to the patch printed on the opposite side of the perpendicular antenna substrate.
This configuration allows more space for the active circuits and the feeding network than the parallel-substrate aperture-coupled patch antenna.[1] The size of an active radiating module in such an architecture is bounded by the geometry of the array unit cell, but is unbounded in depth.
The best cross-polarization levels achieved with or without image configuration for the probe-fed patch and aperture-coupled patch antennas at a maximum steering angle are compared, showing that the array of probe-fed patch antenna has a slightly better performance.
Compared to a classical patch antenna, aperture-coupled patch antennas offer an improvement in terms of the optimization of radiation characteristics and antenna size.
This article presents the design of aperture-coupled patch antennas for an active read/write microwave tagging system using circular polarization modulation (CPM).
Aperture-coupled patch antennas are especially suited to meet the antenna specifications because the multilayer structure of those antennas allows the radiation characteristics (patch layer substrate) and the size of the feed network (feed layer substrate) to be optimized independently.
Additionally, aperture-coupled patch antennas feature a high front-to-back ratio due to the intermediate ground plane.
Although the antennas shown here and in Lindmark[2] are both aperture-coupled patch antennas, the radiation behavior may differ due to different array configurations.