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A new isolation structure is integrated in the test socket to reduce the crosstalk between pogo pins with various pin patterns and different signal to ground (S/G) ratios. It comprises inserted vias to shield the signal coupling and two metal planes to connect the inserted vias with the ground pogo pins. The crosstalk between pogo pins with and without the isolation structure is simulated and investigated...
This paper proposes a new isolation structure integrated in the dielectric holder of a test socket for reducing the crosstalk noise. The isolation structure consists of inserted vias and metallic planes, connecting the inserted vias with ground pogo pins. It can provide better than -20 dB crosstalk and reflection noises from DC to 10 GHz, with 10 dB improvement in crosstalk at 10 GHz.
The relative intensity noise (RIN) characteristics in blue laser diodes on wurtzite AlGaInN MQW structures were investigated using the rate equations with the quantum Langevin noise model. The device parameters were extracted from the band structures of the MQW active region by using the self-consistent multiband Hamiltonian for the strained wurtzite crystal structure.
Location techniques are crucial in many engineering and medical applications. The paper attempts to assess sensor network localization techniques in an indoor environment based on range measurements. As the range measurements are often subject to errors due to sensor and environment. Different methods may result in different positioning performance. In the paper, several localization techniques are...
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