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.
This paper investigates the feasibility of using diode-based predistortion for linearizing GaN power amplifier used in digital radio links. The predistortion linearizer circuit is built around diodes and resistors and can be operated from a DC supply voltage as low as 1 V. The proposed linearized amplifier is tested using QPSK signals. The results shows an improved performance for output powers up...
A gallium nitride (GaN) Schottky diode on semi-insulating SiC has been developed for microwave power rectification. A 2 μm × 100 μm finger type diode shows ON resistance of 8.2 Ω and depletion capacitance of 0.36 pF at 0 V with breakdown voltage of 90 V. S-parameter analysis separated the ON resistance into the intrinsic part and the access region part, which will benefit device optimization. With...
This paper describes the design and realization of a hybrid lumped output network for a current-mode class-S power amplifier. It consist of a band pass filter, a balun and a broad-band constant current supply. The filter achieves a bandwidth of 300 MHz and 0.5 dB insertion loss. As a demonstrator for the class-S concept, the developed network together with a GaN MMIC switching stage and GaAs Schottky-diodes...
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.