In this paper dual band aperture coupled Circularly Polarized (CP) C-Slotted antenna with a small frequency ratio exited through a single feed is proposed for GPS application. The optimized design of CSlot antenna has been validated using IE3D Electromagnetic wave simulator. The C-slot is asymmetrical about the centre of the antenna. The antenna parameters can be optimized by changing the physi...

In this paper, we have investigated a printed modified circular disc monopole antenna with cross-shaped slot in radiating patch for UWB applications. The proposed antenna covers the entire UWB band (i.e., 3.1GHz to 10.6GHz) except the frequency band of IEEE 802.11a (i.e., from 5.15GHz to 5.83GHz). This UWB antenna will be of use in environments where IEEE 802.11a WLAN devices are already in ope...

This paper provides experimental and implementation details for various forms of multiple-input multiple-output (MIMO) cube antennas. Slot dipole antennas are used as basic elements of these MIMO antennas. Experimental results show that especially at higher frequencies of various wireless applications the additional loss of the printed antennas increase and therefore implementation of such ante...

A post-wall waveguide-fed parallel plate slot array shown in Fig.1 is one of the attractive candidates for high efficiency and mass producible planar array antennas in millimeter-wave applications [1]-[3]. A unit T-junction model with simplified PEC solid-walls was utilized for highspeed design using the method of moments [1]. Unfortunately, the antenna designed by this model was suffered from ...

With the virtual enforcement of the required boundary condition (BC) at the end of a slot antenna, the area occupied by the resonant antenna can be reduced. To achieve the required virtual BC, the two short circuits at the end of the resonant slot are replaced by some reactive BC, including inductive or capacitive loadings. The application of these loads is shown to reduce the size of the reson...

In this paper, we present a systematic approach to the design, optimization and characterization of a broadband 5:1 bandwidth (0.8 to 4.0 GHz) antenna subarray. The array element is an optimized-taper antipodal Vivaldi slot with a bandwidth of 2.5:1. Two such elements of different sizes and with 0.4 GHz (10% of the highest frequency) overlapping bandwidths are arrayed in a nested lattice above ...

Reconfigurable micro-strip patch antenna with a U-slot is proposed for wearable fabric applications. Fabric substrate is used for the proposed antenna for manufactured and designed to steer the beam directions at the operation frequency of 7. 0 GHz. For design the proposed antenna the U-shaped slot and a proximity-coupled feeding technique are applied. By configuring two artificial switches bet...

The polarization-sensitive cross slot antenna recently constructed by Papathanakos [1] was used to investigate the possibility of designing a polarization-sensitive bolometric detector. A bolometer or other absorber located near a polarizationsensitive antenna may couple to the antenna, preferentially absorbing electromagnetic waves of the polarization radiated by the antenna. Lock-in amplifica...

In this paper, two miniaturized (20 × 20mm2) coplanar waveguide fed slot antennas are proposed. Both the antennas are characterized by ultra wide impedance bandwidth while one of them has an additional narrow band near 2.5GHz. The radiating element of the proposed antennas is a modified rectangular geometry which is excited by a 50 ohm line. The slot in the ground plane is stair case shape for ...