A novel approach for miniaturization of slot antennas - Antennas and ... location on the slot. Fig. 1 illustrates the idea where it is shown that by imposing a finite voltage at both ends of a slot, the de- sired magnetic current distribution on a short slot antenna can Multi-Band Circularly Polarized Slot Antenna for GPS, Bluetooth and ... This basic idea is improved to provide a reduced size slot antenna with multiple circularly polarized bands and a linear polarized (LP) band. The geometry of the proposed antenna is shown in Figure 1.
A circular slot with 4 unequal slot arms quarterly attached to it can, under certain conditions, provide dual orthogonal modes over two diﬁerent frequency bands . This basic idea is improved to provide a reduced size slot antenna with multiple circularly polarized bands and a linear polarized (LP) band.
US9413074B2 - Method and arrangement for modeling antenna… A method and an arrangement for modeling antenna emission characteristics are disclosed. A slotted microwave waveguide is implemented by separate mechanical modules having slot groups respectively implemented therein. US6057802A - Trimmed foursquare antenna radiating element… A foursquare dual polarized moderately wide bandwidth antenna radiating element is provided which, due to its small size and low frequency response, is well suited to array applications.
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The slot antenna, consisting of a narrow slit in a ground plane, is a very versatile antenna. With modification, it is amenable to waveguide, coplanar waveguide (CPW), coaxial, slot line, or microstrip feeding schemes and has been used in all aspects of wireless and radar applications. International Journal of Antennas and Propagation - Hindawi
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Slot Antenna - an overview | ScienceDirect Topics
I'm building a bumper mounted antenna tower, EMT with some square tube. Earlier today I stumbled across an article on 2 meter slot antennas cut in to satellite dishes. Literature is repetitive either directed towards that subject or TV and UHF broadcasting. I like the idea of a Dipole analogue that doesn't look like an antenna...
Slot antennas are used typically at frequencies between 300 MHz and 24 GHz. The slot antenna is popular because they can be cut out of whatever surface they are to be mounted on, and have radiation patterns that are roughly omnidirectional (similar to a linear wire antenna, as we'll see). The polarization of the slot antenna is linear.
This slot (220) is a functional main part of the antenna. It is located so that a relatively narrow strip of the ground plane remains between it and an edge of the ground plane (210). At the end of this ground strip (212), beside the open end of the slot, there is connected an elongated auxiliary element (230), which elevates slightly from the ground plane and is then directed toward the closed end of the slot. The auxiliary element increases the electric length of the slot so that the basic ... Slot antenna design - ResearchGate It is probaby a good idea to build and test some slot antennas to get a feeling for how they work. Of course, an analysis using CST,HFSS, FEKO, COMSOL is also a good idea. Co-designed defected ground structure filter with UWB slot antenna slot to reduce the ﬁrst resonant frequency of the antenna has been studied in our previous work . As shown in Fig. 2(a), Type-II antenna is designed with an A novel approach for miniaturization of slot antennas - Antennas and ... location on the slot. Fig. 1 illustrates the idea where it is shown that by imposing a finite voltage at both ends of a slot, the de- sired magnetic current distribution on a short slot antenna can