The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
We demonstrate a volatile organic compounds (VOC) gas detection using silicon based microring resonator devices. Polymer is chemically attached to sidewall of silicon waveguide and microring as a cladding layer. Absorption of VOC gases into the polymer film induces a resonance wavelength shift. A detection limit of 10 part per million (ppm) for both toluene and acetone has been achieved.
A compact broadband balun on a silicon substrate is proposed for millimeter wave applications. By utilizing the stacked coupling and compensated line, it is expected that the balun exhibits an amplitude balance of less than 0.1 dB and a phase balance of less than 1° in a frequency range from 70 GHz to 100 GHz. The minimum insertion loss is 0.9 dB in the operational frequency band. The balun size occupies...
This paper presents a novel variable inductor consisting of a triple transformer, pMOSFET switches and a level shift circuit in 0.13 μm CMOS technology. The structure of the variable inductor is designed and analyzed by using Ansoft HFSS. The inductance varies from 0.678 nH to 1.055 nH with changing a control voltage from 0 to 1.5 V. The quality factor of the variable inductor is around 7 at 3.4 GHz.
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.