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 new topology for a triband Doherty power amplifier (DPA). It utilizes a triband impedance inverter, realized using a T-network, to synthesize a triband power combining network. This approach enables Doherty load modulation around three separate operating frequencies with suitable fractional bandwidths. For proof of concept, a demonstration DPA operating at 1200, 1800, and 2700...
In this paper, a miniaturized, ultra-wideband, dual-section, two-way offset power divider, covering the frequency range from 0.6 to 6 GHz, with reflection cancellation and enhanced isolation, is presented. The divider small form factor is achieved through the use of a π-structure that replaces the λ/4 transmission lines in each of the divider's sections. The dimensions of the open stubs forming this...
In this paper, a quad-band, multi-standard, concurrent, low noise amplifier operating in the 0.9/1.8/2.45/3.5 GHz bands is presented. The amplifier design is based on an ultra low noise PHEMT transistor connected in the common source topology with inductive degeneration. The input matching network is based on a three-section, dual-band transformer. A feedback capacitor is inserted between the gate...
In this paper, a design for a quadband linear/efficient class-AB power amplifier, with an output power exceeding 10-watts in all four bands is presented. The designed power amplifier - based on a GaN HEMT- provides a power added efficiency over 47% in all four bands. Source/load-pull simulations are used for optimum matching at each band; quadband stub-based matching is used for input matching whilst...
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.