GaAs MMIC based components and frontends for millimeterwave communication and sensor systems

Exploiting the 60 GHz band for local wireless multimedia access: prospects and future directions

“…In particular, gallium arsenide (GaAs) field effect transistor (FET) technology has evolved to the point where 60 GHz GaAs MMICs are production-ready [5]. GaAs-based 60 GHz devices such as low-noise amplifiers, high-power amplifiers, multipliers, and switches can nowadays be ordered in large quantities in die form at prices on the order of $10-20 apiece [6]. For application in WLAN equipment, however, this might still be too expensive.…”

Broadband Millimeter-Wave Single Balanced Mixer and Its Applications to Substrate Integrated Wireless Systems

“…R ECENTLY, millimeter-wave techniques have become prevalent in the development of high-speed communication and high-resolution imaging and advanced sensing applications [1]- [3]. Meanwhile, with the increase of operation frequency into the millimeter-wave region, low-cost wideband transmitters or receivers are required for the system design.…”

“…3, it can be found that the conventional SIW works as a reference line, and the phase difference between these two lines is given by (1) where denotes the width of SIW sections, and represent lengths of the proposed slotted SIW line and the conventional SIW line, respectively, and and are the effective dielectric constants of the slotted SIW line and the conventional SIW line, respectively. The proposed broadband phase shifter is designed upon and , which can be obtained after working through some mathematical manipulation, as discussed in [20].…”