Measurement of intermodulation distortion in high-linearity photodiodes

Measurement of intermodulation distortion in high-linearity photodiodes.

Accurately characterizing third order intermodulation distortion (IMD3) in high-linearity photodiodes is challenging. Two measurement techniques are evaluated-a standard two-tone measurement and a more complicated three-tone measurement technique to measure IMD3. A model of the measurement system is developed and used to analyze the limitations of the two techniques in determining the distortio...

Improving Linearity of CMOS Variable-gain Amplifier Using Third-order Intermodulation Cancellation Mechanism and Intermodulation Distortion Sinking Techniques

This paper presents an improved linearity variable-gain amplifier (VGA) in 0.18-µm CMOS technology. The lineari­ty improvement is resulted from employing a new combinational technique, which utilizes third-order-intermodulation (IM3) cancellation mechanism using second-order-intermodul­ation (­IM2) injection, and intermodulation distortion (IMD) sinking techniques. The proposed VGA gain cell co...

Intermodulation Distortion

Device linearity and intermodulation distortion comparison of dual material gate and conventional AlGaN/GaN high electron mobility transistor

0026-2714/$ see front matter 2010 Elsevier Ltd. A doi:10.1016/j.microrel.2010.09.033 ⇑ Corresponding author. Tel.: +91 11 24115580; fax E-mail addresses: [email protected] ( (R.S. Gupta). 1 Tel.: +91 11 24115580; fax: +91 11 24110606. In the work proposed, linearity performance of dual material gate (DMG) AlGaN/GaN HEMT has been analyzed and compared with the corresponding performance o...

CHARACTERIZING IMD Characterizing Intermodulation Distortion of High - Power Devices

Modern wireless communication systems demand for high power and broadband devices. There are different technologies emerging offering more and more power density, with single devices delivering power levels above 100 watts. These devices are targeted for broadband telecommunications like W-CDMA or Wi-Fi application. Intermodulation distortion is very critical in these applications because it ge...