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 unbalanced transformerless vector-sum phase shifter architecture. The proposed approach is based on the forming of four signals from the input unbalanced signal by an RC quadrature all-pass filter. These signals are subtracted to obtain a pair of orthogonal signals which are added on the load network of the Gilbert cells with weighted coefficients to form the differential...
This paper presents the simulation results of a linear, fully integrated, two-stage digitally programmable 130 nm CMOS power amplifier (PA) operating at 2.4 GHz. Its power stage is composed of a set of amplifying cells which can be enabled or disabled independently by a digital control circuit. All seven operational modes are univocal in terms of 1 dB output compression point (OCP1dB), saturated output...
An Radio Frequency (RF) Power Amplifier (PA) plays a key role in front end of RF Transmitter. It's role is to convert low power RF Signal into high Power signal so that it can drive the antenna of the transmitter. The PA exhibits certain desirable characteristics such as enormous output Power, reduced heat dissipation, nominal input and output return loss and eminent gain. It is necessary to cut down...
This paper presents a low-power low-IF RF frontend for 2.4GHz wireless sensor networks (WSN) in 0.18μm RF CMOS technology. The RF frontend consists of a variable gain low noise amplifier (VG-LNA), a quadrature passive mixer and a divide-by-two circuit which generates the differential quadrature LO signals for quadrature balanced mixer. The effect of the input parasitic capacitance on the inductively...
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.