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.
We investigate design effects on the opto-electrical frequency response of waveguide-coupled, lateral Ge p-i-n photodiodes to estimate the sensitivity of this response to diode fabrication tolerances and, in particular, to improve our understanding how diffusion of photo carriers acts on the response behavior.
A rectangular cavity antenna design for terahertz integrated circuits is presented. The antenna is built in a 75 µm-thick InP substrate with a dielectric constant of 12.5. Thick substrates often cause unwanted substrate modes that severely hamper radiation efficiency. Our proposed cavity antenna design, however, overcomes the substrate mode problems and utilizes the dominant TE101 mode to maintain...
Terahertz vector-sum phase shifters capable of 360 phase control over the frequency range of 240 to 310 GHz are presented. Because the impedance mismatch of the variable-gain amplifiers employed in the phase shifter determines the flatness of the offset phases, a new broadband VGA design with its input and output impedances unaffected by dc bias is introduced. The measured results on the...
We report the InP HBT scaling strategies required for 80-160 Gb/s optical fiber ICs, and a variety of recent HBT results, including 87 GHz static frequency dividers, 175 GHz amplifiers, and >450 GHz fmax DHBTs
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.