Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Vahakn Nalbandian"'
Publikováno v:
IEEE Transactions on Antennas and Propagation. 50:832-835
This paper presents a double-layer leaky-wave microstrip antenna that is entirely planar for easy fabrication. The cavity model and the full-wave spectral domain method are used to analyze the proposed structure. The results from these two approaches
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a0e542d933151c00058199a5a88e4ce
https://doi.org/10.1109/tap.2002.1017664
https://doi.org/10.1109/tap.2002.1017664
Publikováno v:
Microwave and Optical Technology Letters. 20:261-265
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e45d84a41e509e2f73ae4ff468cc6bb
https://doi.org/10.1002/(sici)1098-2760(19990220)20:4<261::aid-mop11>3.0.co
https://doi.org/10.1002/(sici)1098-2760(19990220)20:4<261::aid-mop11>3.0.co
Publikováno v:
Microwave and Optical Technology Letters. 6:629-632
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b14ae744ccfa7ed8b54b1f0d1ebaf2a1
https://doi.org/10.1002/mop.4650061105
https://doi.org/10.1002/mop.4650061105
Autor:
Choon Sae Lee, Vahakn Nalbandian
Publikováno v:
IEEE Transactions on Antennas and Propagation. 47:1005-1007
A novel circularly polarized (CP) microstrip antenna is introduced. The antenna is fed with a single coaxial probe and the structure is planar. The CP bandwidth is much larger than available single-probe microstrip antennas and the CP radiation quali
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b08e865f5b40f5ba761ffdf1d30e8a4
https://doi.org/10.1109/8.777124
https://doi.org/10.1109/8.777124
Autor:
C.S. Lee, Vahakn Nalbandian
Publikováno v:
IEEE Antennas and Propagation Society International Symposium. 1999 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.99CH37010).
One of the most detrimental aspects of microstrip antennas despite their many advantages is narrow bandwidth. Even though numerous successful results have been reported, a bandwidth more than 20% is difficult to achieve. In this paper a new technique
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::36a6c49c7c5a045af1999897bc013def
https://doi.org/10.1109/aps.1999.789534
https://doi.org/10.1109/aps.1999.789534
Autor:
Vahakn Nalbandian, Choon Sae Lee
Publikováno v:
IEEE Antennas and Propagation Society International Symposium. 1998 Digest. Antennas: Gateways to the Global Network. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.98CH36194).
In the proposed antenna, a high-order mode is used in a double-layer structure to facilitate the radiation process while matching the input impedance. The high-order modes become leaky when the propagation constant is less than that of the free-space
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::439e607b5a7b41f563911eaa7d45a950
https://doi.org/10.1109/aps.1998.702096
https://doi.org/10.1109/aps.1998.702096
Autor:
Choon Sae Lee, Vahakn Nalbandian
Publikováno v:
IEEE Antennas and Propagation Society International Symposium 1997. Digest.
In a single microstripline, the dominant mode is "quasi" TEM, which is a non-radiating surface mode. The higher-order modes, however, become leaky when the propagation constant is less than that of the free-space wave number, k/sub 0/. One of the sim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c3324448a078b09eb6d3c148145374f
https://doi.org/10.1109/aps.1997.631755
https://doi.org/10.1109/aps.1997.631755
Publikováno v:
IEEE Antennas and Propagation Society International Symposium. 1995 Digest.
Microstrip antennas have been rigorously analyzed by the moment method. The most time-consuming part in the analysis is the two-dimensional integration for evaluation of the matrix elements. An asymptotic method of stationary phase is introduced. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2a77b655d0174d52425e4ade6ff6da3
https://doi.org/10.1109/aps.1995.530176
https://doi.org/10.1109/aps.1995.530176
Publikováno v:
Microwave and Optical Technology Letters. 14:295-296
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aca67e9712df8be6367d629ae4d3cf6d
https://doi.org/10.1002/(sici)1098-2760(19970405)14:5<295::aid-mop13>3.0.co
https://doi.org/10.1002/(sici)1098-2760(19970405)14:5<295::aid-mop13>3.0.co
Publikováno v:
IEEE Transactions on Antennas and Propagation. 44:1426-1427
A novel circularly polarized (CP) microstrip antenna with a single coaxial feed is introduced. The antenna consists of two layers, each radiating fields which at the zenith are perpendicular to each other with 90/spl deg/ phase difference. The CP ban
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f99808d50215e1be23768126d0e4313f
https://doi.org/10.1109/8.537339
https://doi.org/10.1109/8.537339