Title :
Chirped delay lines in microstrip technology
Author :
Laso, M.A.G. ; Lopetegi, T. ; Erro, M.J. ; Benito, D. ; Garde, M.J. ; Muriel, M.A. ; Sorolla, M. ; Guglielmi, M.
Author_Institution :
Electron. Eng. Dept., Public Univ. of Navarre, Pamplona, Spain
Abstract :
In this paper, we report on a design method for chirped delay lines (CDLs) in microstrip technology. They consist in a continuously varying strip width, so that the coupling location between the quasi-TEM microstrip mode and the same but counter-propagating mode is linearly distributed in frequency. High delay/spl times/bandwidth products, over frequency ranges of several gigahertzs, can be obtained following this procedure. Experimental data confirm the design method. Real-time Fourier analysis of wideband pulses can be performed using these CDLs.
Keywords :
S-parameters; chirp modulation; delay lines; microstrip couplers; microstrip filters; spectral analysis; chirped Bragg coupling; chirped delay lines; compressive receivers; continuously varying strip width; counter-propagating mode; coupling location; design method; high delay-bandwidth products; impedance modulation; joint time-frequency representation; linearly frequency distributed; microstrip technology; mode-coupling location; perturbed microstrip impedance; quadratic-phase filter; quasi-TEM microstrip mode; real-time Fourier analysis; real-time spectral analysis; wideband pulses; Bandwidth; Chirp modulation; Delay lines; Design methodology; Frequency estimation; Impedance; Microstrip; Performance analysis; Strips; Wideband;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/7260.974554
