Title :
High carrier rejection for a 3.7 to 4.2 GHz BPSK modulator
Author :
Larroque, J. ; Sombrin, J. ; Lapierre, L. ; Sautereau, J.F.
Author_Institution :
CNES¿Laboratoire Hyperfréquence, Toulouse, France
Abstract :
The letter deals with a 3.87 GHz balanced modulator, produced using planar technology with slotlines and microstrip lines engraved on an Epsilam-type substrate, and two beam lead Schottky diodes HP HSCH 5314. Under modulation up to 50 MHz, carrier and even harmonic rejection of better than 45 dB is obtained, with transmission losses lower than 3db.
Keywords :
modulators; phase shift keying; solid-state microwave circuits; 3 dB; 3.7 to 4.2 GHz; 50 MHz; BPSK modulator; Epsilam-type substrate; balanced modulator; beam lead Schottky diodes HP HSCH 5314; carrier rejection; even harmonic rejection; microstrip lines; modulation frequency; planar technology; slotlines; transmission losses;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19870221
