What value approximates the intrinsic impedance of free space ($\eta_0$) that an antenna should align with for optimal propagation?
Answer
$377 ext{ ohms}$
For a wave to propagate most effectively into free space, the antenna's impedance must align with the intrinsic impedance of free space, which is approximately $377 ext{ ohms}$.
#Videos
How does an Antenna work? | ICT #4 - YouTube
Related Questions
What is the fundamental role of an antenna according to the text?What type of electrical signal is required to power wave transmission by an antenna?What physical phenomenon is responsible for the creation and radiation of electromagnetic waves?How is the physical size of an antenna fundamentally related to the signal being transmitted?What characterizes the electric and magnetic fields in the antenna's near field region?For a wave to transmit successfully as a propagating electromagnetic wave, what transition must occur in the fields?What relationship describes how antenna Gain relates to Directivity?What occurs if the impedance of the transmitter does not closely match the impedance of the antenna?What value approximates the intrinsic impedance of free space ($\eta_0$) that an antenna should align with for optimal propagation?How are frequency ($f$) and wavelength ($\lambda$) linked for electromagnetic waves traveling in free space?What causes a minute alternating current to be created in a receiving antenna?