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

Volume

11

Issue

12

fYear

2001

Firstpage

486

Lastpage

488

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;

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/7260.974554

Filename

974554