HMC990LP4E 数据资料DataSheet下载
... wideband limiting LO amplifiers to achieve an unprecedented RF bandwidth of 700 MHz to 3500 MHz. Unlike conventional narrow-band downconverter RFICs, the HMC990LP4E supports both high-side and low-side LO injection over the entire RF frequency band. The RF and LO input ports are internally matched t ...
... wideband limiting LO amplifiers to achieve an unprecedented RF bandwidth of 700 MHz to 3500 MHz. Unlike conventional narrow-band downconverter RFICs, the HMC990LP4E supports both high-side and low-side LO injection over the entire RF frequency band. The RF and LO input ports are internally matched t ...
29(1)
... 1: Let j > k be positive, relatively prime integers. A triangle will be called an triangle if one of its angles is j/k times another.
It is easy to write down the primitive integral <1, 1> (i.e., isosceles)
triangles. These triangles have sides s, ss and r, where v and s are positive
integers ...
... 1: Let j > k be positive, relatively prime integers. A triangle will be called an
Mathematics of radio engineering
The mathematics of radio engineering is the mathematical description by complex analysis of the electromagnetic theory applied to radio. Waves have been studied since ancient times and many different techniques have developed of which the most useful idea is the superposition principle which apply to radio waves. The Huygen's principle, which says that each wavefront creates an infinite number of new wavefronts that can be added, is the base for this analysis.