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.
Various kinds of broadband radio frequency integrated circuits for astronomical instrument were developed in Taiwan during past 18 years. In this paper the key technology and results, including the circuit design, testing, packaging and system integration are described.
A 56 to 66 GHz sub-harmonic resistive mixer using 0.13 CMOS technology is presented in this letter. This mixer exhibits a flat conversion loss of about 12 and 13 dB and good isolations between ports from 56 to 66 GHz for both down and up-conversion with a lowest LO power of 0 and 1 dBm. The 2LO-RF isolation is more than 27 dB even if IF input power exceeds 4 dBm, which results from...
A image rejection mixer MMIC has been designed and implemented with 0.15μm GaAs pHEMT process, with the chip size of 1.36mm × 1.38mm. The mixer employs a balanced image rejection structure and resistive FET mixers. The measured conversion loss is less than 10.6dB in the frequency range of 24GHz to 40GHz and the image rejection is above 15dB.
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.