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.
A fully integrated power amplifier using a power cell switching technique, implemented in 65 nm CMOS technology is presented. The main objective of the proposed architecture is to significantly improve the efficiency at high power back-off. To do so, distributed active transformers are used as the splitter, the combiner and the DC bias feed to partition the power requirements among the parallelised...
A fully CMOS transmitter including a power amplifier (PA) using a Cartesian Feedback (CFB) technique is presented. This system aims at improving the linearity of the transmitter, designed in 65nm CMOS technology from STMicroelectronics, essentially the power amplifier linearity. This transmitter delivers a maximum output power of 23dBm. Thanks to this linearization technique, the ACPR has been improved...
This paper presents a 65nm CMOS-Power Amplifier (PA) designed for UMTS standard. It is based on a triple Stacked Folded pseudo-Differential Structure (triple SFDS) power stage and a differential cascode driver stage. The PA provides 31.5 dBm maximal output power (Pmax) with 20% of maximal power added efficiency (PAEmax) at 1.95 GHz. The linear gain is 37 dB and the compression point (OCP1) is 29.5...
A study based on improving linearity of an integrated RF power amplifier (PA) has been done for W-CDMA standard. This power amplifier had been designed in 65 nm CMOS of STMicroelectronics under Cadence. The chosen linearization technique is a Cartesian Feedback (CFB). Thanks to this linearization technique, the ACPR has been improved by 22 dB at 5 MHz from the carrier for an output power of 18 dBm.
This paper presents a 65 nm CMOS power amplifier (PA) using a coupled transformer. The PA is based on an original structure, called stacked folded fully differential structure (SFFDS). It is applied to the UMTS W-CDMA standard. The parallel SFFDS power amplifier provides 30.5 dBm of output power with 20% of power added efficiency (PAE) at 1.95 GHz. The output compression point (OCP1) is 27.5 dBm and...
This paper presents a 65 nm CMOS-power amplifier (PA) designed for mobile communications.The PA is based on a new structure, the stacked folded fully differential (SFFD) which is inspired by a push-pull structure. The PA is designed for the UMTS W-CDMA standard which requires linearity from -20 dBm to 24 dBm output power. The power amplifier provides 31 dBm output power with 26% of power added efficiency...
This paper investigates the feasibility of designing a RF TX architecture based on a Power VCO, operating at 1.95 GHz for UMTS/WCDMA standard. The Power VCO uses 2.5 V supply voltage and is designed using 65 nm CMOS technology from ST Microelectronics. The Power VCO is made up of an oscillating Power Amplifier (PA). In order to fulfil UMTS/W-CDMA requirements, especially on output power with regards...
This paper describes the feasibility of a power amplifier (PA) in 0.13mum CMOS technology from STMicroelectronics. It is designed for the UMTS W-CDMA standard. This power amplifier provides 33 dBm maximal output power with 60% of power added efficiency (PAE) at 1.95 GHz. This standard requires linearity from -20 dBm till 24 dBm output power. The linear gain is 16.7 dB and the compression point (OCP1)...
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.