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.
Two programmable frequency dividers for fractional-N frequency synthesizers are presented. The input frequency range is from 1GHz to 10GHz for both circuits, which were manufactured in a 130 nm SiGe BiCMOS technology. The first divider (divider1) has divisor values ranging from 32 to 127 and operates with a single supply voltage VCC between 2.2V and 4V, while the divisor value range for the second...
This paper describes an integrated frequency multiplier, implemented as a Gilbert cell based frequency doubler in a 130 nm SiGe BiCMOS technology. The circuit demonstrates a 3 dB bandwidth of 97–134GHz with peak output power of 1 dBm for 1 dBm input power. The fundamental suppression, measured at the single-ended output, is better than 21 dBc while the frequency doubler consumes 69mW from a 3.3V supply...
An integrated frequency sixtupler in SiGe BiCMOS technology is presented. It is composed of a nonlinear differential amplifier used as a frequency tripler followed by a Gilbert mixer used as a frequency doubler. The 3 dB bandwidth of the circuit is 15GHz in between 222 – 237GHz range with peak output power of −4 dBm for 0dBm input power. The suppression of the 120GHz feed through signal at the mixer...
A 2/3 divider in a 130 nm SiGe BiCMOS technology is presented. Inductive shunt peaking was used to optimize the divider for high input frequencies. Two test circuits with and without input balun were manufactured for characterization at high and low input frequencies, respectively. The divider is functional for input frequencies up to 70 GHz and draws 20 mA from a 3.3 V supply. The circuit will enable...
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.