HYPERLABS Application Notes

A bias tee is a three-port device that is commonplace in the test and measurement world. Its application includes scenarios which need DC bias, voltage or current, injected onto the RF transmission line to bias components such as photo diodes, active antennas, and amplifiers. Kelvin bias tee is a four-port device that adds a sense port to the standard bias-tee. This special variation enables the user to precisely measure the DC voltage at the DUT, thus eliminating biasing errors.

Baluns are three port devices used to convert unbalanced signaling to balanced signaling, or vice-versa. Standard single port scattering parameters (s-parameters) fail to convey the common mode or differential mode response of the balanced, or differential port. This application note explains how mixed-mode s-parameters can be deployed to provide this useful information.

Application Note # AN-010 presents the HL9334, high-precision sampler/harmonic mixer integrated circuit (IC) offering excellent linearity, low noise, and flat frequency response up to 20 GHz (RF).

Application Note # AN-009 presents the tradeoffs between using 110 GHz DC Blocks made with Silicon (HL9439) and Ceramic (HL8439) substrates.

Measurements presented in Application Note # AN-008 to show that HYPERLABS’ broadband linear amplifiers perform exceptionally well in PAM4 applications at 10Gbaud.

Application Note # AN-006 focuses on differential to single-ended conversion versus single-ended measurements. We will show that using a balun with a high Common Mode Rejection Ratio (CMRR) will be beneficial to the designer only if common mode signals are present on the differential signal.

Application Note # AN-005 demonstrates use of HYPERLABS’ broadband coaxial components as general-purpose analog signal processing components for the generation of novel time-domain waveforms.

Application Note # AN-004 illustrates the step response and data response of our industry-leading HL940X Broadband Baluns.

Application Note # AN-002 compares differential s-parameter measurements taken with a single-ended 2-port VNA and a pair of HYPERLABS broadband baluns against a 4-port VNA.

Application Note # AN-001 shows the DC circuit model of HYPERLABS ultrabroadband baluns, which represent an evolution of the Marchand balun.