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 Doherty power amplifier (PA) for long term evolution (LTE) applications is fully integrated on a 1.4×1.4 mm2 die using a 2-µm InGaP/GaAs hetero-junction bipolar transistor (HBT) process. The quarter-wavelength transformer is the bandwidth (BW) limit of the Doherty PA. Other bandwidth limiting factors are analyzed and eliminated. A conventional phase compensation circuit and an additional offset...
A two-stage power amplifier (PA) and a supply modulator are designed and implemented for envelope-tracking (ET) operation to reduce dc power consumption. The supply modulator is connected to each stage of the PA and further enhances efficiency in a back-off power region. The envelope of a signal is reshaped to achieve good linearity and efficiency. The ET PA performs a power-added efficiency (PAE)...
A two-stage power amplifier (PA) and a supply modulator are designed and implemented for envelope-tracking (ET) operation to reduce dc power consumption. The supply modulator is connected to each stage of the PA and further enhances efficiency in a back-off power region. The envelope of a signal is reshaped to achieve good linearity and efficiency. The ET PA performs a power-added efficiency (PAE)...
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.