This is the second part of a two-part blog series dedicated to providing a brief explanation of the various types of RF amplifiers with highlights of pertinent applications. This section includes more specialty amplifier types that are still widely used throughout the...
What are the Different Types of RF Amplifiers? Part-1
RF Amplifiers are used to add power to an RF signal. The type of RF amplifier used depends on where in the signal chain that a higher gain signal is needed. The input and output characteristics of an RF amplifier dictate the appropriate use of a given amplifier, and...
Low Noise Amplifiers Q&A
A low noise amplifier (LNA) is an essential active RF device in virtually all receiver (RX) front-ends (FE) and throughout the signal chain in many sensitive designs. LNAs are designed to amplify weak RF signals while introducing minimal noise into the signal chain....
What is a 90 Degree Hybrid Coupler?
A 90 Degree Hybrid Coupler is a one of the few hybrid coupler types, the others include 180 degree hybrid couplers and 0 degree hybrid couplers. 90-degree hybrid couplers are also known as quadrature couplers/hybrids, as any signal injected into any port will result...
Bidirectional Amplifier Basics
A Bidirectional Amplifier, or Bi-directional Amplifier (bda), is an active RF device that is widely used in a variety of telecommunication, radar, and other RF sensing applications. Though conceptually a Bidirectional Amplifier performs a relatively simple operation,...
RF Terminations & RF Loads Basics
What is an RF Load and where are RF Terminations used? RF terminations/RF loads are fundamental components used throughout an RF signal chain in virtually all RF applications from test and measurement to military and aerospace. Essentially, RF loads, and terminations...
High-Power PIN Diode Switches Using GaN Semiconductor Technology
Gallium Nitride (GaN) semiconductors have been a focus of development and innovation in the RF/microwave industry due to the inherent strengths of GaN technology for high power and broadband applications. Compared to Silicon (Si), GaN semiconductors benefit from the...
The Present and Future of GaN
Gallium nitride (GaN) semiconductor technology has been in development for decades. It has also been hyped for many industries as a powerhouse semiconductor technology due to several intrinsic traits of the material. Though not all of the hype has come to fruition,...
Low-Power Wireless Area Network (LPWAN) and Low-Power Wireless Personal Area Networks (LoWPAN) Overview
A personal area network (PAN) is the backbone of a personal computer and electronics device network that encompasses a personal workspace. A wide-area network (WAN) is a wireless telecommunication wide area network that is designed to allow for long-range...
Yagi Antennas- Front to Back Ratio, Gain vs # of Elements, and Element Spacing Explained
A Yagi-Uda Antenna (Yagi Antenna), named after the co-inventors Hidetsugu Yagi and Shintaro Uda, is a direction antenna with a single driven dipole section with a series of parasitic elements (directors) that re-radiate energy from the main dipole thus manipulating...