It’s no secret that meeting the inexhaustible demand for the future of wireless electronics will require utilising the higher ends of the electromagnetic (EM) spectrum. Driven by 5G, 6G & beyond, ultra-high definition video, autonomous vehicles, security applications, IoT & Industry 4.0, design engineers must capitalise on the millimetre wave (mmW) bands which presently cover the frequencies between 30 GHz to 500 GHz.