Uses for Matching Pads The terms Impedance Matching Pads, resistive impedance transformers, or minimum loss pads all refer to the same RF components that solve a relatively common problem in some applications that have equipment, components, and devices at different standard impedances. For example, many broadcast, TV, and military communication systems use 75 ohms as...

What Makes a Hi-Rel Amplifier Hi-Rel? The main application for High Reliability (Hi-Rel) RF/microwave amplifiers is for military, defense, aerospace, and other critical applications where device reliability is otherwise mission critical. In essence, a Hi-Rel Amplifier is just an amplifier that meets one or more military standards for reliability. In order to ensure device and...

All About Waveguide Shorts and Shims For many RF test applications in the higher frequencies, such as millimeter-waves, or for high power use cases, rectangular waveguides are the interconnect solution of choice. In a similar wave to short-open-load-through (SOLT) calibration standards used for vector network analyzer (VNA) calibration with coaxial interconnect, VNA using waveguide interconnect...

PE73SP1070 RF Surge Protector by Pasternack Enterprises Inc The PE73SP1070 from Pasternack Enterprises Inc is a RF Surge Protector with Frequency 555 MHz to 4 GHz, Input Power 200 W, Insertion Loss 0.1 dB, Operating Temperature -40 to 85 Degree C, Surge Current 50 kA. Tags: Quarter-Wave Shorting Stub (QWS). More details for PE73SP1070 can be seen...

PE71S1104 RF Switch by Pasternack Enterprises Inc The PE71S1104 from Pasternack Enterprises is a Reflective SP4T PIN Diode Switch that operates from DC to 6 GHz. It supports TTL control logic and has a switching speed of less than 100 ns. The switch can handle an input power of up to 40 W, has an insertion loss...

Millimeter-wave Interconnect Considerations By: Peter McNeil There has been a general trend of radio and sensing applications shifting to higher frequencies, either to avoid interference due to the growing use of RF and microwave spectrum or to take advantage of the growing accessibility of millimeter-wave hardware. This is true for consumer, industrial, military, aerospace, and...

MIMO vs SISO – Antenna Technology By: Peter McNeil Though the terms single-input single-output (SISO) and multi-input multi-output (MIMO) originate with controls engineering, SISO and MIMO are now very commonly discussed in reference to RF antennas. In controls engineering, a SISO system has only one input and one output, such as a DUT with only...

Pasternack Expands Its Line of Low-PIM Coaxial Cable Assemblies that Deliver PIM levels of < -160 dBc New Low-PIM Cable Offering Includes Expanded Cable and Connector Options IRVINE, Calif. – Pasternack, an Infinite Electronics brand and a leading provider of RF, microwave and millimeter wave products, has recently expanded its ever-growing line of low-PIM coaxial...

New Models Deliver Unmatched Performance for Signal Chains that Require High Dynamic Range IRVINE, Calif. – Pasternack, an Infinite Electronics brand and a leading provider of RF, microwave and millimeter wave products, has just introduced a new series of variable gain amplifiers to address applications including instrumentation, sensors, radar, wireless communications, automatic gain control loops...

Waveguide Horn Antenna Primer By: Peter McNeil A waveguide horn antenna is a type of aperture antenna that is designed with a gradual transition of the inner metallic walls to ensure an impedance match between the waveguide port to free space. In this way, a waveguide horn antenna’s aperture and axial length can be adjusted...