About Ryan Foster

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So far Ryan Foster has created 10 blog entries.
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 [...]

2 05, 2019

Extending the Range of a Low Power UAV Radio

By |2019-05-13T12:50:41+00:00May 2nd, 2019|Design Innovation, Product Development|

Low-power UAV radio systems, though designed for short distance communications, can be an inexpensive and reliable means of communications over greater distances – especially when the application is small UAS platforms. Many of these radios come with a variety of options including programmable bandwidths, RF power settings, and modulation type. Usually the bandwidth and modulation [...]

2 05, 2019

Cost Effective Full-Duplex Systems Utilizing a Semi-Custom Approach

By |2019-05-02T18:25:16+00:00May 2nd, 2019|Design Innovation, Product Development|

The requirements of modern datalinks in the UAV and large airframe market present challenges for systems designers. Many modern communication systems often require full-duplex operation, and several systems may be operating on a single airframe. At the same time size, aerodynamic and radar signature concerns can limit the ability of designers and integrators to add [...]

14 02, 2019

Balancing Linearity and Efficiency in a Power Amplifier

By |2019-04-17T18:49:35+00:00February 14th, 2019|Design Innovation, Uncategorized|

Achieving both high linearity and high efficiency together in a Radio Frequency (RF) Power Amplifier (PA) system is challenging. Typical designs for highly efficient PAs (i.e., greater than 40% DC power efficiency) involve operating devices in their non-linear range, i.e., at or near compression (saturation). A PA operating in its nonlinear region inherently creates distortion [...]

15 10, 2018

Is Your Project on Schedule?

By |2019-04-22T18:02:00+00:00October 15th, 2018|Leadership Insight|

When working or leading a high technology project, a simple question related to the status of a program can become difficult one to answer. This difficulty is clearly seen by anyone who has been involved in the development, manufacturing and testing high performance radio frequency modules. As with any project, leadership must deal with the [...]

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 [...]

16 07, 2018

What is Noise Figure and How to Improve it with a Low Noise Amplifier

By |2019-04-18T17:40:20+00:00July 16th, 2018|Product Development|

Noise Figure (NF) describes the amount of noise a component, amplifier, or an entire radio receive chain contributes to the RF signal being received. Electrical noise is combined with the RF signal as it is generated by the RF transmitter and propagated through space. This signal is then captured by the receiving antenna and guided [...]

21 06, 2018

Why 50 ohms?

By |2019-04-22T18:36:50+00:00June 21st, 2018|Product Development|

A common concern for radio frequency design engineers is providing sufficient margin in a module or system to survive the real-world application in which their work will eventually operate. Our engineering team is constantly dealing with the trade-offs of meeting the myriad of customer specifications while ensuring that our designs are robust enough to survive [...]

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 [...]