Superconducting millimetre-wave cameras

Millimetre-wave and Terahertz Electronics

ALMA Memo # 533 * Improving Accuracy of Superconducting Microstrip Line Modelling at Millimetre and Sub - Millimetre Waves

This paper presents a new model to calculate the characteristic impedance and wave propagation constant of a microstrip line made of a superconducting material. Modelling provides the only tool for designing superconducting microstrip based circuits because no direct measurements of such a line can be made at millimetre and sub-millimetre waves and at cryogenic temperature of 4 K with required ...

Multi–Antenna Techniques for Millimetre–Wave Radios

Millimetre-wave InP antenna for monolithic integration

Introduction: Millimetre-wave fibre wireless applications [1] could profit from a small antenna that can be fully integrated with the microwave and optical components of the system. This can lead to smaller and more cost-effective fibre-fed antenna units. Active integrated antennas [2] are another application that could benefit from a directly integrated antenna. Printed antennas are the obviou...

52-GHz Millimetre-Wave PLL Synthesizer

Multiple 60-GHz WPAN (Wireless Personal Area Network) radio transceiver chips using CMOS or BiCMOS process have been developed as wireless communication service of several-gigabit rate [Reynolds, 2006] [Razavi, 2006]. In a 60GHz millimetre-wave transceiver, frequency synthesizer is a key building block. It is very difficult to design the PLL-based programmable synthesizer directly at 60GHz band...