New applications of perturbation theory to ferrite phase shifters
1991 ◽
Vol 27
(6)
◽
pp. 5465-5470
◽
1991 ◽
Vol 39
(12)
◽
pp. 2198-2203
◽
1965 ◽
1974 ◽
Vol 22
(4)
◽
pp. 360-364
◽
1974 ◽
Vol 22
(6)
◽
pp. 614-617
◽