منابع مشابه
Band-reject ultra-wideband monopole antenna using patch loading
Proposed is a new simple technique for achieving band rejection characteristics in ultra-wideband monopole antennas. Two band notches were added to an existing UWB antenna by gluing a padding patch printed on a small single-layer piece of commercial substrate. The design of the new proposed structure has a controllable rejection in the 5 GHz WLAN and 8 GHz ITU frequencies while maintaining a wi...
متن کاملMultifrequency Monopole Antennas by Loading Metamaterial Transmission Lines with Dual-shunt Branch Circuit
The theory and design of a new family of multifrequency monopole antennas by smartly loading a set of complementary metamaterial transmission line (CMTL) unit cells are investigated. The distributed CMTL elements, epsilon negative (ENG) or double negative (DNG) through incorporating additional capacitive gaps, contain a Koch-shaped extended complementary single split ring resonator pair (K-ECSS...
متن کاملBubble with Global Monopole
The first-order phase transition of O(3) symmetric models is considered in the limit of high temperature. It is shown that this model supports a new bubble solution where the global monopole is formed at the center of the bubble in addition to the ordinary O(3) bubble. Though the free energy of it is larger than that of normal bubble, the production rate can considerably be large at high temper...
متن کاملNoncommutative Monopole from Nonlinear Monopole
We solve the non-linear monopole equation of the Born-Infeld theory to all orders in the NS 2-form and give physical implications of the result. The solution is constructed by extending the earlier idea of rotating the brane configuration of the Dirac monopole in the target space. After establishing the non-linear monopole, we explore the non-commutative monopole by the Seiberg-Witten map. ∗mor...
متن کاملMonopole Antenna Radar Cross Section Reduction with Plasma Helix
In this paper, a new method for radar cross section reduction of a monopole antenna is proposed. In this method, a plasma helix like fluorescent bulbs is placed around the antenna element. The selected plasma parameter for this medium acts as an absorber without disturbing the antenna performance. The simulations show that radar cross section of simulated antenna is reduced in a wide frequency ...
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ژورنال
عنوان ژورنال: IEEE Transactions on Antennas and Propagation
سال: 1963
ISSN: 0096-1973
DOI: 10.1109/tap.1963.1138059