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This paper describes a noise analysis of interference waveforms in swept source optical coherence tomography using a KTa1-XNbXO3 deflector. Noise reduction based on such analysis is needed for obtaining high-resolution images. The quality of the tomographic images depends on the signal-to-noise ratio (SNR) of the point spread functions (PSFs). The relationship between the noise of the interference...
Recently, the S-parameter method, which is the measurement method of the input impedance of the balanced antenna, has been proposed. However, when the measured frequency rises, measurement accuracy decreases because the influence of the jig cannot be disregarded. To eliminate an influence of the measurement jig, we have proposed the modified open correction using the ABCD-matrix. In this report, to...
Recently, the S-parameter method using a vector network analyzer and a measurement jig instead of a balun was proposed whereby the differential input impedance of a balanced-fed antenna were obtained. As no balun is used, measuring impedance over a wide frequency bandwidth is now possible. To improve measurement accuracy of the S-parameter method, the dependence on thickness of the semi-rigid cable...
Recently, the S-parameter method using a vector network analyzer and a measurement jig instead of a balun was proposed whereby the differential input impedance of a balanced-fed antenna were obtained. As no balun is used, measuring impedance over a wide frequency bandwidth is now possible. To improve the measurement accuracy of the S-parameter method, the dependence on direction of SMA connectors...
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