Couplings Designer Update 1.4

Releasing Couplings Designer 1.4 for iPhone and iPad! Get it at the App Store, new users may also want to try Couplings Designer Lite for free. Features – Tutorials – Documentation Features and bug fixes in this version:

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iOS 7.1 related bug discovered!

As some of you have generously pointed out there is a bug in Couplings Designer 1.3 that was introduced with the iOS 7.1 release a couple of weeks ago. The bug introduces a crash whenever one is performing any of … Continue reading

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Tutorial, coaxial cavity filter

Read the article: Coaxial cavity filter with folded topology. An aluminum coaxial re-entrant resonator is designed for high Q to meet specifications on insertion loss. High rejection is achieved with a symmetrical pair of transmission zeros implemented using an electric … Continue reading

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New filter synthesis tool for windows

Currently looking for beta testers of a new filter synthesis tool, similar to Couplings Designer, for windows. I will select a number of testers that will be rewarded with the end product when released. You need to be familiar with … Continue reading

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Video tutorials available

A demonstration of advanced filter synthesis concepts that can be applied to your future designs to meet the demand for stringent requirements. Couplings Designer makes it easy. Transmission zeros – the importance of transmission zeros and how they can be … Continue reading

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Couplings Designer Update 1.3

Releasing Couplings Designer 1.3 for iPhone and iPad! Get it at the App Store, new users may also want to try Couplings Designer Lite for free. Features – Tutorials – Documentation Features and bug fixes in this version:

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Couplings Designer Update 1.2

Releasing Couplings Designer 1.2 for iPhone and iPad! Features and bug fixes since the previous version: fixes a bug that made seeding new coupling matrices fail fixes a bug where the response plot was blank improved response plot Buy it … Continue reading

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Couplings Designer Update 1.1

Releasing Couplings Designer 1.1 for iPhone and iPad! Features and bug fixes since the previous version: iPad support (scaled up version) supports bandstop response prescribed transmission/reflection zeros predistortion easy sign-change of couplings Buy it at the App Store or try … Continue reading

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Update 1.1 seed-bug workaround

Couplings Designer 1.1 was released yesterday along with new features like prescribed zeros, predistortion, bandstop support, iPad support etc. However, we didn’t anticipate a bug that was introduced when updating from 1.0 which makes seeding new coupling matrices impossible. The … Continue reading

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Releasing Couplings Designer for iPhone

Design and synthesize modern advanced RF and microwave filters with Couplings Designer for iPhone, available today for $29.99 at the app store. Try Couplings Designer LITE for free, which has all the features but limited to 4th order filters.   … Continue reading

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