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
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?
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
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
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?
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
Unlike 3G or 4G, 5G is not just about the wireless connection between smart phones, computers, and the internet. It is about everything: home appliances, door locks, security cameras, cars, wearables, and many other inert devices. It is about the smart home, the smart office, and the smart city. When fully developed, the 5G wireless … Continue reading 5G and Millimeterwave
Many customers come to us and ask: "What is the insertion loss of SAGE Millimeter’s rectangular waveguide?" It is always a tough question for us to answer, because it is really dependant on the types of materials the waveguide is built with and how the plating is applied. Because of that, we only can offer … Continue reading Rectangular Waveguide Loss
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?
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