Heriot-Watt University

Heriot-Watt Students Designs Novel RF Filters
The ease of use and intuitiveness of the software helped us get up and running quickly. In addition, the help we received from the AWR software support team enabled us to overcome several of the more sophisticated design challenges we faced.
Jiasheng Hong
Heriot-Watt University

Heriot-Watt Students Designs Novel RF Filters

Company Profile

Heriot-Watt University is a public university based in Edinburgh, Scotland. It was established in 1821 as the world’s first mechanics’ institute. It has campuses in the Scottish Borders, Orkney, Dubai, and Putrajaya in Malaysia. The university provides a stimulating environment for researchers to contribute the necessary advances in engineering science and technology to sustain the future. Engineering at Heriot-Watt is within the top ten of UK research institutions.

The Design Challenge

Planar RF/microwave filters are very useful for applications where size, weight, and cost are important. For example, significant filtering requirements exist for planar and drop-in receiver filters at IF frequencies in the up- or down-converter of wireless communication systems, including satellite payloads. Sharp rejection and flat pass-band insertion loss are required, which results in high-Q resonators. Lossy and predistorted design theory for filters can provide the required rejection and flatness, avoiding the use of high-Q materials, which are more expensive, and providing the required compactness.

The Solution

A team of researchers at Heriot-Watt collaborated on the design of a lossy extracted-pole filter to meet the challenges of compact and inexpensive planar filter design. To develop this filter, the team relied on AWR Design Environment, which was available to faculty and students at Heriot-Watt University through AWR software’s university program.

The filter was fabricated using printed circuit board (PCB) to achieve a lightweight small footprint and profile.

To continue to read the full story, click to download the PDF document below...

For more information about this application, the original paper that is the inspiration for this success story can be accessed by IEEE members at http://ieeexplore.ieee.org/document/7824292/

Related customer stories

For Creowave it is extremely important to succeed on the first round. We don't do many design-rounds because the filters have to be on the market fast. We believe that this is not possible with any other tools besides AWR.
Jyrki Koski
Managing Director
Read story
For us, Microwave Office means accurate models, fast filter development cycles, time savings and cost efficiency.
Kimmo Koskiniemi
RF Chief Engineer
Pulse Electronics
Read story
AWR's solution is unique because the company's tool development is driven by customer demand. It offers all the features that are absolutely necessary for an effective product design. The AWR design flow, along with excellent customer support, is a winning combination.
Mathias Kleinsorge
RF Engineer, Project Leader
Read story