Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Vikram Sekar"'
Publikováno v:
IEEE Microwave Magazine. 16:34-54
Developing radio-frequency (RF), microwave, and millimeter-wave systems requires low-cost, mass-producible, high-performance, and high-yield technologies for passive and active sections. Dealing with radio coexistence and strong coupling between diff
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6472c0f8028b2db579760fa2db023cf7
https://doi.org/10.1109/mmm.2015.2408273
https://doi.org/10.1109/mmm.2015.2408273
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 60:1444-1455
In this paper, dielectric constants of lossy organic liquids are measured using oscillation frequency shifts of a negative-resistance voltage-controlled oscillator (VCO). The design and working principle of the oscillator and the effect of material l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ebb9ed8977d6acd85568d77a93feab3a
https://doi.org/10.1109/tmtt.2012.2187066
https://doi.org/10.1109/tmtt.2012.2187066
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 59:866-876
This paper presents a high-performance substrate-integrated-waveguide RF microelectromechanical systems (MEMS) tunable filter for 1.2-1.6-GHz frequency range. The proposed filter is developed using packaged RF MEMS switches and utilizes a two-layer s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4414a24d406bda5b51c53f2e3976d7cc
https://doi.org/10.1109/tmtt.2011.2109006
https://doi.org/10.1109/tmtt.2011.2109006
Autor:
Kamran Entesari, Vikram Sekar
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 58:2475-2489
This paper presents a theoretical approach to predict the effect of nonlinear noise mechanisms in all-pole RF microelectromechanical systems (MEMS) tunable filters. It is shown that both nonlinearity and noise can be expressed as perturbations of pol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9965078606e9df591ac3a4341b29d7b0
https://doi.org/10.1109/tmtt.2010.2058595
https://doi.org/10.1109/tmtt.2010.2058595
Autor:
Kamran Entesari, Vikram Sekar
Publikováno v:
International Journal of RF and Microwave Computer-Aided Engineering. 20:114-121
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c201ffce031ee1dc3db375db2a884291
https://doi.org/10.1002/mmce.20403
https://doi.org/10.1002/mmce.20403
Autor:
Vikram Sekar, Kamran Entesari
Publikováno v:
International Journal of RF and Microwave Computer-Aided Engineering. 19:692-700
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8786a85d746768eed8e83bed4cce5ae5
https://doi.org/10.1002/mmce.20393
https://doi.org/10.1002/mmce.20393
Autor:
Tero Tapio Ranta, Richard Whatley, F.M. Rotella, Vikram Sekar, Alper Genc, Chih-Chieh Cheng, Chang Zeng
Publikováno v:
2015 IEEE 15th Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems.
This paper compares insertion loss, harmonics and Q-factor of sapphire, trap-rich silicon and high-resistivity silicon substrates. The concept of substrate characteristic frequency is shown to be useful metric to evaluate substrate behavior. New meth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd40e03216f3603d0851b731640712b5
https://doi.org/10.1109/sirf.2015.7119867
https://doi.org/10.1109/sirf.2015.7119867
Autor:
Kamran Entesari, Vikram Sekar
Publikováno v:
IEEE Microwave and Wireless Components Letters. 22:336-338
A two-pole, half-mode substrate-integrated-waveguide (HMSIW) RF MEMS tunable filter with 28% tuning range around 1.4 GHz is presented. The filter occupies a total area of λg × 0.7λg @ 1.4 GHz and exhibits an insertion loss of 1.2-3.4 dB, return lo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6fec7ed85b63afa13e2009eaf77ae3e6
https://doi.org/10.1109/lmwc.2012.2199976
https://doi.org/10.1109/lmwc.2012.2199976
Autor:
Vikram Sekar, Kamran Entesari
Publikováno v:
IEEE Microwave and Wireless Components Letters. 21:80-82
In this letter, a miniaturized, ultra-wideband (UWB) filter with notch using a slow-wave co-planar waveguide (CPW) multiple-mode resonator (MMR) is presented. By employing a slow-wave CPW MMR, the resonator length is reduced by 40% at mid-band freque
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bc2e0b80b07f07e3801ed9cad61dfb06
https://doi.org/10.1109/lmwc.2010.2096803
https://doi.org/10.1109/lmwc.2010.2096803
Publikováno v:
WAMICON 2013.
This paper presents a review of recently reported chemical sensors for dielectric detection at microwave frequencies. The sensors are based on a sensing element exposed to materials under test (MUT) as a part of a VCO inside a frequency synthesizer l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0e97e94f0a7b62b2291f9883404db849
https://doi.org/10.1109/wamicon.2013.6572758
https://doi.org/10.1109/wamicon.2013.6572758