Custom Waveguide Straights, Bends, Twists, and Flanges

The waveguide sections offered by SAGE Millimeter cover the frequency range of 8.2 to 325 GHz. These sections include waveguide straights, bends, twists, mode transitions and flange adapters. The waveguide sections are designed for full-band operations from X-band to WR-03. Other lower frequency waveguides may be available upon request. Standard waveguides offered by SAGE Millimeter … Continue reading Custom Waveguide Straights, Bends, Twists, and Flanges

Coaxial Low Pass Filters to Improve SFB and SFU LO to IF Port Isolation

SAGE Millimeter offers complete balanced mixer and upconverter solutions under the product series of SFB and SFU based on GaAs Schottky beam-lead diode and balanced circuit configuration to offer the superior RF performance. For instance, the W Band balanced mixer with model SFB-10-N1 shown in Figure 1, supports the full waveguide band operation for both … Continue reading Coaxial Low Pass Filters to Improve SFB and SFU LO to IF Port Isolation

SAGE Millimeter, Inc. is becoming Eravant in March 2020

SAGE Millimeter will become Eravant in March 2020, a change that renews our commitment to serve, first and foremost, the RF engineer. Rebranding as Eravant represents our promise to continue investing in our customers and our team members. And as our company transitions to the new brand, we trust that your experience with us will continue to set the standard for all supplier partnerships.

Power Handling of Waveguide Power Combiner, Directional Coupler, Crossguide Coupler and Waveguide to Coax Adapter

Historically, limited CW power was available in the millimeterwave frequency range, especially in the higher frequency bands, Ka-band and above. Therefore, power handling was not a major concern for most customers, except in the case of certain dedicated high-power applications or programs in which special attention was required. As semiconductor advancement and applications of such … Continue reading Power Handling of Waveguide Power Combiner, Directional Coupler, Crossguide Coupler and Waveguide to Coax Adapter

Many SAGE Millimeter Products have Wider than Standard Waveguide Operating Frequency Range

SAGE Wider then standard Frequency Range

Waveguides are some of the most important transmission lines used in microwave applications, especially in millimeter-wave systems, due to its low loss and high-power handling characteristics. However, the waveguide has a defined operating bandwidth due to its inherent structural limitations. For example, the standard operating frequency of a WR-10 rectangular waveguide is 75 to 110 … Continue reading Many SAGE Millimeter Products have Wider than Standard Waveguide Operating Frequency Range

Waveguide Connector*, Uni-Guide™

The waveguide, along with the coaxial line, is one of the most important transmission media in any modern RF, microwave and millimeter-wave component, and sub-assembly and system. Due to its metal tubing configuration, the waveguide tends to be heavy and bulky, especially in low microwave frequencies. However, it is always a preferred transmission means …

Why is There a 6 dB Correction on Measured Waveguide to Coax Adapter Return Loss Using a Back to Back Connection?

Many customers will question SAGE Millimeter’s waveguide to coax adapter return loss performance. They will mention that their measured return loss is lower than what is on the provided datasheets or in the specifications provided in their quotes. SAGE Millimeter has noticed that these same customers often test return loss by using the “back to … Continue reading Why is There a 6 dB Correction on Measured Waveguide to Coax Adapter Return Loss Using a Back to Back Connection?

How to Use the Spectrum Analyzer and a Noise Source to Measure Noise Figure

Noise figure is an important parameter in many RF applications. Per its definition, Noise Figure (NF) is a measurement of the degradation of the signal-to-noise ratio (SNR) which is caused by components in a signal path. It is a number by which the performance of an amplifier or a radio receiver can be specified. The lower the values, the … Continue reading How to Use the Spectrum Analyzer and a Noise Source to Measure Noise Figure

How to Use the Quadrature Mixer as a Phase Detector and Single Sideband Modulator

A quadrature mixer consists of two balanced mixers where the RF (or LO) ports are connected along with an in-phase power divider; the LO (or RF) ports are connected with a quadrature hybrid. There are two IF ports, "I" for the in-phase component and "Q" for the 90° out-of-phase component. They are available to the … Continue reading How to Use the Quadrature Mixer as a Phase Detector and Single Sideband Modulator

Noise Source Basics and SAGE Millimeter’s Full Band Noise Source Calibration Uncertainty

STZ series full waveguide band noise sources are silicon IMPATT diode based solid state noise sources. These noise sources implement high performance diode and propriety circuit design to offer high ENR with extreme flatness in entire waveguide bandwidth in the frequency range of 26.5 to 170 GHz in eight waveguide bands. The standard noise sources … Continue reading Noise Source Basics and SAGE Millimeter’s Full Band Noise Source Calibration Uncertainty