Building a Budget 16dB 5GHz Horn Antenna with a 3D Printer and Copper Tape

Sat, 28 Mar 2026 00:00:00 +0000

Introduction

Recently, I’ve been getting more into high frequency RF design. This comes at the cost of typically expensive ICs, money on tools, more money on prototypes, and a lot of reading. I don’t really mind the reading too much, but, when I set out to do a project that would require a 5-6GHz antenna and saw the price enter the $300+ range, I thought almost about scrapping the project.

Solving The Sword of Secrets

Sun, 01 Mar 2026 00:00:00 +0000

After placing my order on day one of the release, waiting four months, then waiting another two because of various delays, the hardware CTF Sword of Secrets has finally arrived. I’ve always been interested in CTFs and have participated and won some before, but, never tried a hardware CTF as they are not as popular, usually expensive or exclusive, and as far as I know theres only a few that exist. So, after hearing about the Sword of Secrets I signed up the moment the it became available, couldn’t miss the boat like I did with The Skull.

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Building a Budget 16dB 5GHz Horn Antenna with a 3D Printer and Copper Tape

Introduction

Solving The Sword of Secrets