In the opinion of many satellite operators, the frequency bands 3 400–4 200 MHz and 4 500–4 800 MHz (known as C-band) are not suitable for this purpose. The frequency ranges 3 400–4 200 MHz and 4 ...
CDMA 850 is CDMA technology operating in the Cellular (850 MHz) frequency band. Before the existence of GSM 850, the Cellular band was often referred to as the "800 MHz" band. "850 MHz" implies a ...
This paper describes the development of a double-sided band-pass frequency selective surface based on Matryoshka geometry, preserving features such as miniaturization, multiband operation and ...
In a significant effort to balance the expansion of high-speed internet services with the protection of radio astronomy, the National Science Foundation (NSF) and SpaceX have been engaged in a ...