bow tie

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  • noun

Synonyms for bow tie

a man's tie that ties in a bow

References in periodicals archive ?
Perhaps the bow-tie era's most important environmental law program development was the hiring of Janice Weis as our program director.
The bow-tie era was a remarkable period of growth for our law school, inspired by Jim Huffman's vision, optimism, collegiality, and good humor.
Other workers have noted a similar effect using ferrite loading of bow-ties. [5]
Experimental data is presented which shows that the time domain characteristics of the bow-tie antenna can be improved by reactively tuning the antenna elements.
These dipole variations are called bow-tie or bifin antennas.
Even though the bow-tie has the required bandwidth to accommodate the spectral content of the impulse, the problem of ringing is still present.
This also applies to bow-tie antennas, but in this case the zero reactance point occurs at less than 0.5 [lambda] due to the element geometry.
This would allow reactive tuning to be performed, matching the terminal impedance of the bow-tie antenna to the spectral component of the impulse that has the highest amplitude.
This could only be achieved if the bow-tie antenna has a grounded shield (which is already necessary with a GPR antenna).
Thick-film technology provides the ideal medium in which to optimize the performance of the bow-tie elements.
In order to make a fair comparison between a conventionally implemented bow-tie antenna and its thick-film counterpart, a pair of yellow brass bow-tie elements were fabricated along with a set of thick-film elements with a range of metallization thicknesses.
The performance assessment of the bow-tie antennas is based on the parameters described earlier.
Figure 9 and Figure 10 show the time domain response for the two bow-tie antennas when excited with a 400 ps rise time impulse.
The impedance data for the bow-tie antennas were obtained using the vector network analyzer, and are shown in Figure 11 and Figure 12.
The ringing is well attenuated and comparable with that of the resistively loaded bow-tie. It is obvious that an additional inverted impulse occurs in the thick-film variant because the element ends are open circuited, which for the reasons stated earlier is not present with the resistively loaded boxy-tie.