Bias Clarifications of SAGE Millimeter’s Amplifiers and Multipliers

SAGE Millimeter Power Amplifier

SAGE Millimeter offers microwave and millimeterwave amplifiers and active multipliers in the frequency range of 10 MHz to 170 GHz. SAGE Millimeter’s standard amplifiers and active multipliers all have built-in regulators to protect the delicate microwave semiconductor devices. In addition, all amplifier and active multipliers have a built-in “charge pump” to generate negative bias so … Continue reading Bias Clarifications of SAGE Millimeter’s Amplifiers and Multipliers

Where is the 5-64 Waveguide Screw Supposed to be Used?

SAGE Millimeter offers two types of waveguide screws for millimeter wave product interconnections: The smart model number system that SAGE Millimeter implements indicates the hex size of these two models. SWH-332-SS requires standard 3/32 ball end hex screwdriver, while SWH-564-SS requires standard 5/64 ball end hex screwdriver when using them. The 3/32 hex size is … Continue reading Where is the 5-64 Waveguide Screw Supposed to be Used?

Rectangular Horns, Conical Horns, and Lens Corrected Antennas

SAGE Millimeter offers many aperture antennas. The popular ones are: There are two common questions we often receive from our customers: Do we have 30 dB or higher gain rectangular or conical horn antennas? Do lens corrected antennas make the beamwidth narrower? In this post we will address these questions. Do we have 30 dB … Continue reading Rectangular Horns, Conical Horns, and Lens Corrected Antennas

Corner Reflectors

The corner reflector is a passive device used to directly reflect radio waves back toward the emission source. Therefore, the corner reflector is a useful device for radar system calibration. In general, the corner reflector consists of mutually intersected perpendicular plates. The commonly seen corner reflectors are dihedral and trihedral. While the dihedral corner reflector is … Continue reading Corner Reflectors

Duplexing: Circulator or Orthomode Transducer?

In communication and radar systems, duplexing is one of the essential functions that allows a single antenna to perform the transmission and receiving tasks at same time. Both circulators and orthomode transducers (OMT) can play this role. The question is: Which device will the designers pick? The circulator is a ferrite based non-reciprocal device. The … Continue reading Duplexing: Circulator or Orthomode Transducer?

Reintroduction to Gunn Oscillators

The semiconductor used in the Gunn oscillator is called the “Gunn diode.” The Gunn diode is a two-terminal “negative” resistance device. The Gunn diode is also referred to as a “Transferred Electron Device” which was invented by J. B. Gunn in 1963. Since its invention, Gunn oscillators have been playing a unique role in replacing … Continue reading Reintroduction to Gunn Oscillators

Which is Better: Simulated or Measured Performance for Simple Antennas?

Measuring antenna pattern and gain accurately is often a challenge. It is not only due to the demand of expensive test equipment, but also the requirement of skilled and knowledgeable workers. In addition, it is impossible to avoid the interactions introduced by the test equipment and test fixtures/equipment holders. Unlike most microwave component testing, antenna … Continue reading Which is Better: Simulated or Measured Performance for Simple Antennas?

Fixed, Level Setting, Direct Reading, and Programmable Attenuators

SAGE Millimeter offers four types waveguide attenuators: fixed, level setting, direct reading, and programmable attenuators. Fixed and Level Setting Attenuators These attenuators are constructed with an E Plane resistive insert in the rectangular waveguide. The operating waveguide mode is TE10. The insertion loss and attenuation of this type of attenuator is frequency dependent. The difference … Continue reading Fixed, Level Setting, Direct Reading, and Programmable Attenuators