A dual-polarized 2-D monopulse conical conformal antenna is proposed in this article. First, a method for implementing beams presented. novel array arrangement and comparator suitable arrays are developed. Then, wideband endfire element based on the double rhombic dipole designed with directors reflector to obtain stable high-gain radiation. feeding network consisting of four rat-race couplers employed excite elements. The sum difference horizontal vertical polarizations realized azimuth...

This letter presents a novel design method of compact wideband loop antenna for circularly polarized (CP) radiation based on two sets common modes (CMs) and differential (DMs). Different CMs DMs are excited in the with same amplitude radiated electric fields by using equal-amplitude in-phase excitation. A CP performance is achieved through combination an innate 90° phase delay. Moreover, shared-aperture configuration achieves size reduction. An experimental prototype was fabricated measured...

A low-profile wideband continuous transverse stub (CTS) array with stable radiation patterns is proposed in this communication. It integrated on six-layer substrates by using substrate-integrated waveguide (SIW) technology, which consists of three parts: a line source generator (LSG), power divider, and CTS radiator. The LSG can generate quasi-TEM wave an offset parabolic cylindrical reflector based geometrical optics (GO), the radiator fed parallel 1-to-8 divider. performance antenna...

A high-efficiency dual-polarized conformal transmitarray antenna is proposed by using cross-arranged Huygens elements composed of electric and magnetic resonance structures in this letter. In order to achieve high aperture efficiency (AE), the with transmittance angular stability are used as phase modulation surface antenna. The dual-polarization performance achieved cross-arrangement units. effects different curvatures on two polarizations investigated separately, simulation results prove...

This paper proposed a novel filter antenna with the conical beam, which consists of four magnetoelectric (ME) dipole antennas. By printing parasitic patches and etching open slots on bottom substrate, two radiation nulls near high frequency passband are introduced. Combined intrinsic null ME-dipole antenna, filtering response is obtained. In order to verify design method, prototype manufactured measured. The measurement results show that impedance bandwidth (VSWR <2) 1.48 ~ 2.61 GHz (55.3%)....

A novel in-band RCS reduction method based on the manipulation of antenna mode scattering field (AMSF) is proposed for Vivaldi array. The mechanism impact load impedance changes AMSF array systematically analyzed first time, and a more accurate extracting element with changed proposed, which not only considers influence mutual coupling but also incorporates 50Ω load. By adjusting impendence optimizing reflection phase distribution an optimization algorithm, manipulated becomes cancellation...

In this letter, a novel methodology to remove the common-mode resonance of tightly coupled arrays using two-set unit cell and conformal operation is presented, whereby ultra-wideband dual-polarized phase array developed with high efficiency for wireless power transfer applications.Initially, design method shift outside operating band described, infinite proposed operation.Subsequently, 8 × dualpolarized cells are designed conform cylindrical surface radius 200 mm (1.3λ), resulting in...

Previously, cascaded frequency-selective rasorbers (FSRs) with low structural complexity only obtained single-order passbands, which always leads to wide transition band, where energy leakage happens seriously damage the out-of-band scattering characteristics. In this article, a novel method for enabling high-selectivity FSRs multiorder passband is proposed solve problem. The transmission resonance fusion technology of lossy layer broken through from perspective analyzing resistance...

A broadband of circularly polarized (CP) patch antenna fed by L-probes has been presented in this paper. In order to improve axial ratio bandwidth, wideband 90° hybrids with two L-probe feeds are used as feeding netwok, and cones act radiator instead common circular patch. total 6 array elements a 2 × 3 configuration achieve maximum gain target 14 dBi. However, it will enlarge the overall size antenna. The network is located on lower side substrate for compacting size. measured results agree...

A novel wideband dual-polarized conformal antenna array with low profile is presented by using dual characteristic modes (CMs) in this paper. First, utilizing two set of orthogonal CMs that operate at the adjacent bands, a wide impedance bandwidth operation achieved element design. Then, columnar surface bending study performed, leading to development 4×5 cylindrical array. The suggested exhibits 10.4%, high polarized isolation 15.1 dB and 1.3mm (0.015λ), under 100-mm (1.16λ) radius...

An innovative design method of conformal array antennas is presented by utilizing characteristic mode analysis (CMA) in this work. A single-layer continuous perfect electric conductor under bending conditions conducted CMA to evaluate the variations operating performance. By using method, process a simplified. The results indicate that performance antenna with metal radiation structure remains stable within certain range curvature. Subsequently, an infinite element designed, ultra-wideband...

In Dense Wavelength Division Multiplexing (DWDM) optical communication networks, the Optical Performance Monitor (OPM) can monitor key indicators for instance power, central wavelength, bandwidth, and signal-to-noise ratio in real-time. However, traditional OPM modules face challenges like low accuracy, high cost, unavoidable physical impacts. This paper proposes using Back Propagation Neural Network (BPNN) algorithm to improve performance monitoring accuracy by reconstructing spectrum...

A reconfigurable holographic metasurface (HM) with multifunctional modulation of radiation and scattering for conformal applications is designed in this paper. Based on optical holography theory, a mechanism proposed, the surface impedance distribution HM derived. To illustrate mechanism, used to demonstrate series functions, its property enabling dynamic beam control. In mode, scanning wide angle from −50° 50° achieved. specific responses are generated under different incident angles,...

A single-feed circularly polarized (CP) microstrip antenna with C-shaped defected ground structure (DGS) is proposed in this paper. To generate CP radiation, two orthogonal resonant modes 90° phase difference of the radiated patch etched DGS are excited. Further, to adjacent bands and enhance impedance bandwidth. According results simulation, antenna's bandwidth from 1.54 1.595 GHz. Almost constant radiation at least 112° for different phi angles observed within 3-dB ARBWs. The shows good...