6G ISAC PCB: One Array, Two Jobs Integrated sensing and communication is the first 6G feature that changes the radio itself rather than the spectrum it runs on. One aperture transmits the communication waveform and listens for the echoes of…
Gap Waveguide PCB: Building an Air Line Out of Vias A gap waveguide is what you get when you stop trying to keep the field inside the laminate. Two metal surfaces face each other across an air gap, and one…
Antenna OTA and RCS Test Coupon PCB: Designing a Repeatable Reference A test coupon is not a small product board. It is a reference object: something measured many times, mounted the same way each time, so that a change in…
Metallized Plastic Antenna and PCB Hybrid: Where the Process Stops Working Metallised plastic antennas are usually presented as a way to make antennas lighter, cheaper and curved. The useful question is narrower: at which frequency does the process stop paying…
Multi-Band Counter-UAS Jammer PCB: Four Bands, One Sealed Box A wearable multi-band counter-UAS jammer is a hostile environment for its own electronics: four transmit bands into 60° apertures, a sealed shell with no convection, a control receiver that must keep…
250 GHz Characterization Boards: Differential Probe Pads, Thermal Imaging and the Cold-to-Hot Account A probe station that can sweep DC to 250 GHz in a single pass changes what a characterization board has to be. When the quarter wavelength is…
