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 presents a novel wideband voltage-controlled oscillator (VCO) and a tunable power amplifier (PA) for multi-band transceivers. The proposed oscillator has a core VCO and a tuning-range extension circuit, which consists of an injection-locked frequency divider (ILFD), and flip flop dividers. The 2-stage differential ILFD can generate quadrature outputs, and it realizes 2, 3, 4, and 6 of divide...
The emergence of digital mobile broadband communication systems for voice, data, multimedia and positioning is coupled to the continuous progress of silicon CMOS-technology. Single chip integration with digital part while maintaining excellent RF performance, high integration density, low power consumption and low cost under mass production aspects are the current system design challenges. This paper...
A single-chip, dual-band transceiver for CDMA2000 is presented. The design supporting the North American cellular and PCS bands features a complete zero-IF receiver, a direct-conversion transmitter and two fully integrated synthesizers with VCOs. The analog receiver front-end comprises two self-matched wideband LNAs, a highly linear demodulator and a third-order baseband filter. In a test version...
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.