Helszajn, Joseph and Sharp, John (2012) Cut-off space of a gyromagnetic planar disk resonator with a triplet of stubs with up and down magnetization. IET Microwaves, antennas and propagation, 6 (5). pp. 569-576. ISSN 1751-8725

Helszajn, Joseph and Sharp, John (2012) An FE adjustment of a waveguide turnstile junction circulator using a three quarter wavelength gyromagnetic resonator. IET Microwave antennas and propagation. ISSN 1751-8725 (Submitted)

Helszajn, Joseph, Casanueva, A, Mediavilla, A and Sharp, John (2012) A mode matching adjustment of the first circulation condition of an Inverted re-entrant turnstile waveguide circulator using an arbitrarily oriented prism resonator. IET Microwave antennas and propagation. ISSN 1751-8725 (Submitted)

Helszajn, Joseph and Sharp, John (2010) Fringing effects in re-entrant and Inverted re-entrant turnstile waveguide junctions using cylindrical resonators. IET Microwave Antennas and Propagation, 5 (9). pp. 1109-1115. ISSN 1751-8725

Helszajn, Joseph, Sharp, John and Mackay, Mark (2008) Split frequencies and susceptances of the three port junction circulator from an experimental determination of the complex gyrator circuit. IEEE Transactions on Microwave Theory and Techniques, 56 (10). pp. 2213-2220. ISSN 0018-9480