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This work demonstrates the utilization of digital at every element signal generation to show the effect of directional modulation for radar. For example, where the code modulation used for pulse compression can be changed as a function of angle, such that the code of interest is only generated at the direction of the beam with different codes appearing just off the beam axis, allowing for angular...
This paper shows measurement of intraocular pressure (IOP) within a mouse eye. Three main challenges faced the development of a device for the measurement: the size of the mouse eye, the depth of the anterior chamber where the device will be implanted, and the maximum allowable incision size. These factors all limit the size of the device. In addition, a novel detection scheme is required which enables...
A small three element linear planar array designed to have high isolation between elements for Simultaneous Transmit And Receive (STAR) is demonstrated. This high isolation is achieved through use of tunable resonators that control the near fields of the array without detrimentally affecting the radiated fields. These resonators, which are placed between the patch antenna elements of the array, provide...
This paper presents the fabrication of an ultra-thin tag for identification and sensing applications in extremely small implantable regions. Particularly, we are demonstrating the capability to create a telemetry system which is implantable in a mouse eye. This system will eventually be able to monitor intraocular pressure (IOP). The small size of the mouse eye presents challenges for surgery and...
This paper presents a novel 3D packaging technique for a miniature wireless biomedical sensor. The end goal of this sensor is for implantation into the eye of a mouse, therefore size is extremely limited. The application makes the packaging of the sensor and control of IC a difficult challenge. The thickness of the unit must be less than 300 microns total. It is demonstrated in this paper that the...
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