16 10, 2019

Multifunction RF Power Amplifiers for Space Applications

By |2019-10-14T12:25:44+00:00October 16th, 2019|RF Amplifier, RF Design, RF Front End|

NASA envisions that data throughput and size, weight, and power consumption (SWaP) requirements levied on future space exploration vehicles due to resource constraints will necessitate that a different approach is taken for communications and radar. Rather than employing individual systems for short-range communications, long-range communications, and radar, respectively, a common architecture would need to be [...]

2 10, 2019

High Power Switched Filter Bank Options for RF Communications and Electronic Warfare (EW) Applications

By |2019-09-26T20:21:42+00:00October 2nd, 2019|Design Innovation, RF Amplifier, RF Filters|

A Switched Filter Bank is a device that combines switches and filters to provide user-selectable frequency channels. Switched filter banks are beneficial to Radio Frequency (RF) communication systems and are utilized in both receivers and transmitters to reduce signal interference from harmonics, spurious emissions, strong signal interferers, and to limit noise power for optimized system [...]

11 09, 2019

MMICs vs. Discrete Circuits, What Are the Trade-Offs?

By |2019-09-17T13:39:49+00:00September 11th, 2019|RF Amplifier|

One of the major decisions that a Power Amplifier (PA) Module designer must make in the development process is the choice of architecture that they will utilize in the amplification circuit. The two most widely used options are to pursue a Monolithic Microwaves Integrated Circuit (MMIC) or to design around discrete components. Each of these [...]

9 08, 2018

Power Amplifiers in Parallel for Higher Output Power – Hybrid Power Combining

By |2019-04-22T18:32:23+00:00August 9th, 2018|Product Development, RF Amplifier|

Recently, we had a customer reach out to us inquiring about a 200 W L-band power amplifier (PA). While we did not have such an amplifier to offer (not yet, anyway), we did have a solution. That solution was four of our new L60T01 amplifiers in a hybrid configuration.   The concept of hybrid or [...]

18 04, 2018

Power Amplifier Thermal Protection: Power Back Off

By |2019-04-22T18:55:22+00:00April 18th, 2018|Product Development, RF Amplifier|

An RF Power Amplifier (PA) or Bi-Directional Amplifier (BDA) is able to detect a low-powered RF signal and amplify it to a higher amplitude, providing a variety of useful applications, such as extending the range of Unmanned Aerial Vehicle (UAV) datalinks. Any device generating high power will also result in the generation of heat. For [...]

9 03, 2018

When Should a Design Consider Using a Custom MMICs

By |2019-04-24T18:02:22+00:00March 9th, 2018|Design Innovation, RF Amplifier|

The continuing drive to improve the Size, Weight, and Power (SWaP) of electronics becomes challenging with consumer-off-the-shelf (COTS) lumped element components since the designers are limited by the physical size of packaged components and limitations of assembly processes.  Moreover, as spectrum congestion forces new systems to move higher in frequency, the performance of radio frequency [...]

22 02, 2018

Datalink Range Improvement

By |2019-04-24T18:05:37+00:00February 22nd, 2018|Product Development, RF Amplifier|

One of the most important factors to consider when developing a communication datalink range is the ability to provide sufficient signal strength out to the intended operational range of the platform. Modern radios provide a starting point for this effort as they provide options such as programmable bandwidths, RF power settings and modulation based on [...]

1 02, 2018

The Importance of Size, Weight and Power (SWaP) to Mission Dominance in the Age of the Unmanned Aerial Systems

By |2019-04-24T18:17:27+00:00February 1st, 2018|Product Development, RF Amplifier|

Significant advances continue with respect to unmanned aerial systems in both defense and domestic applications. In fact, their acceptance into the national airspace system is fast becoming a near-term reality. The pace of development has led to an ever-expanding list of missions which increase the demands on systems, both new and old, in terms of [...]

31 05, 2017

Have you Considered the Effects of Mismatch Impedances on the Output of your PA?

By |2019-04-24T18:38:05+00:00May 31st, 2017|Product Development, RF Amplifier|

In order to deliver the maximum amount of power from a power amplifier to an antenna, the impedances must be matched. The parameter used to measure how well the impedances are matched is the Voltage Standing Wave Ratio (VSWR). VSWR is a reflection coefficient known as 'return loss'. It is a measure of how much [...]

19 05, 2017

When is Power Amplifier Linearity Important?

By |2019-04-24T18:40:08+00:00May 19th, 2017|Design Innovation, RF Amplifier|

In today’s complex world of wireless communications, the radio frequency (RF) power amplifier (PA) provides the final boost in power prior to a signal going out over the air or down a cable. However, choosing the appropriate amplifier for your system can be challenging. While there are many different characteristics of PAs, this blog will [...]