Design of Microwave Band-Pass Filters with Cross-Couplings
نویسندگان
چکیده
Cuvinte cheie. Filtre, microstrip, cuplaje încrucişate, optimizare. Rezumat. Articolul prezintă un studiu asupra posibilităţilor de îmbunătăţire a proiectării filtrelor trece-bandă de microunde cu cuplaje încrucişate, utilizând o procedură hibridă de optimizare. În acest fel toate caracteristicile filtrului, incluzând aici şi localizarea în frecvenţă a polilor de atenuare, pot fi precis controlate, permiţând proiectarea unor filtre trece-bandă cu selectivitate îmbunătăţită. Drept exemplu, configuraţia de filtru trece-bandă considerată a fost proiectată folosind simularea electromagnetică iar performanţele sale au fost optimizate utilizând simularea de circuite liniare. Performanţele filtrului concordă bine cu specificaţia, ceea ce validează posibilităţile de proiectare mai precisă a unor filtre trece-bandă de microunde selective, utile în sistemele actuale de comunicaţii.
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