Conical-scam implementations for three antenna types are discussed in terms of the beam nuiatioa method, reference signal generation and angle error demodulation Various applications for these antennas including their use in teaching are discussed. Inder Terms-..eoaical-sean, millimetre wave, antenna I. IN'RODUCiTON Tracking radars require a mechanism to determine the offset of a target from th...

An ultra-wideband (UWB) self-complementary planar bow-tie antenna (SCPBTA) is proposed. The antenna consists of a printed conical horn-shaped (CHS) radiator and a counterpart CHS slot etched on a rectangular ground plane. The printed CHS radiator is connected directly to the 50Ω microstrip line by bending the end portion of the feed line. As a result, the antenna has a simple structure which do...

In this article, microstrip patch antenna with polarization diversity is presented for wireless applications. The proposed antenna consists of two feeding modes; first one is broadside mode (TM11) and second is conical mode (TM01). These two modes are used to realize the polarization diversity. Triangular slot is made on patch which helps for achieving dual-band operation. The simulated and mea...

A theoretical model to analyze the performance of a circular polarization microstrip antenna printed on a conical surface is presented. The radiation pattern of the antenna is simulated by the radiation from its four radiating edges (two axial and two circumferential). The electromagnetic field is expanded in terms of spherical wave modes and it is shown that the circular polarization is obtain...

This letter proposes a monopole multi-sector antenna with dielectric cylinder, and shows some results of simulations that examined the antenna characteristics. The dependency of radiation characteristics on relative permittivity εr shows the lens effect with increase of εr . Furthermore, the characteristics of the proposed antenna are improved by optimizing the termination conditions at the qui...

This paper proposed a design scheme of wide band monopulse antenna system for the passive radar seeker (PRS) of anti-radiation missile (ARM). To save the installation space of the PRS, the conical conformal log periodic antennas (LPDA) are employed to form the monopulse antenna system. The specific implementation scheme of PRS based on the conically conformal monopulse antennas was designed and...

Abstract- In this article, the design of conformal antennas has been discussed using the characteristic modes (CM) method. For this purpose, the vector wave function(VWF) has been utilized to achieve a two-dimensional mapping of the conformal antenna. In designing and analyzing of cone-shaped antennas applicable for multi-input multi-output (MIMO) systems, the most important goal is to achieve ...