A low-profile aperture-coupled microstrip patch antenna (MPA) using the TM10 and TM30 resonant modes to enhance impedance bandwidth is proposed in this paper. Based on cavity model for a square MPA, as well both higher odd-order even-order between them can be characterized. In order combine dual radiative wide bandwidth, rectangular radiating with an feeder employed theoretically investigated at first, aiming demonstrate that all of undesired removed effectively. After that, by loading...

A new gain-enhanced patch antenna with loading of shorting pins is proposed in this paper. Four metallic are symmetrically placed the two diagonals a square resonator to electrically short and ground plane. These tremendously perturb field distribution beneath due their shunt inductive effect. As these four moved outward along orthogonal away from center, influence on over strengthened gradually raise its dominant mode, i.e., TM010 resonant frequency as pin-to-pin spacing enlarged. At fixed...

Many networks can be usefully decomposed into a dense core plus an outlying, loosely connected periphery. Here we propose algorithm for performing such decomposition on empirical network data using methods of statistical inference. Our method fits generative model core-periphery structure to observed combination expectation-maximization calculating the parameters and belief propagation itself. We find efficient, scaling easily with million or more nodes, test it range networks, including...

A single-fed microstrip patch antenna (MPA) with loading of shorting pins for high-gain circularly polarized (CP) radiation is proposed in this paper. Two sets metallic are symmetrically placed along the two orthogonal diagonals a square radiator at first. Due to shunt inductive effect brought by these pins, resonant frequency dominant mode MPA progressively tuned up so as enlarge electrical size pin-loaded resonator and enhance its directivity. After optimal position investigated maximum...

Pin-loaded circularly polarized (CP) patch antennas with wide 3-dB axial ratio beamwidth (ARBW) are proposed in this paper. The ARBW of a CP antenna is mainly dependent on its electrical width at frequency, while the size resonance fully controlled by shunt inductive load. First all, four shorting pins introduced along diagonals dual-fed square patch, so as to exhibit that can be significantly extended if position and pin radius properly chosen. Next, two degenerate modes single-fed slightly...

A co-design of a wideband circularly polarized (CP) patch antenna is proposed in this paper. The seamlessly integrated with two bandpass filter networks consisting one and λ/2 resonators, respectively, which are designed to excite orthogonal modes equal magnitude quadrature phase over widened bandwidth. In filtering antenna, the equivalently treated as last-stage resonator output port network. analysis its far field, axial ratio (AR) CP wave mapped responses. By simultaneously synthesizing...

3D object detection is vital for many robotics applications. For tasks where a 2D perspective range image exists, we propose to learn representation directly from this view. To end, designed convolutional network architecture that carries the spherical coordinates of each pixel throughout network. Its layers can consume any arbitrary convolution kernel in place default inner product and exploit underlying local geometry around pixel. We outline four such kernels: dense according bag-of-words...

Abstract Potassium‐ion batteries (PIBs) have attracted significant research interest in the context of driving advancement grid energy storage due to K's elemental abundance and high theoretical output voltage. The main challenge facing PIBs is find suitable cathode materials with fast transport kinetics stable framework structures intercalate/de‐intercalate large‐size K + . Among these candidates, transition‐metal layered oxides are excellent potential been extensively exploited their...

We report extremely large magnetoresistance (MR) in an extended temperature regime from 1.5 K to 300 nonmagnetic binary compounds TaP and NbP. exhibits linear MR around 1.8×104 at 2 a magnetic field of 9 T, which further follows its linearity up 1.4×105 56 T K. At room the for NbP power law exponent about with values larger than 300% T. Such wide is likely not only due resonance electron-hole balance, but also indicates complicated mechanism underneath.Received 20 May...

Patch antennas with loading of a pair shorting pins are proposed in this paper toward flexible impedance matching and low cross polarization. The introduced the centerline square patch to strengthen surface current density near feeding point at edge. As these paired simultaneously move away from center two radiating edges patch, resonant input microstrip-edge-fed antenna is increasingly reduced due enlarged point. Because symmetric arrangement pins, on maintained as odd-symmetric property...

A novel design concept of enhancing the impedance bandwidth a single-layer shorted microstrip patch antenna (MPA) is proposed under simultaneous radiation one- and three-quarter wavelength resonant modes (TM <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">0,1/2</sub> TM xmlns:xlink="http://www.w3.org/1999/xlink">0,3/2</sub> modes). Initially, conventional MPA with shorting wall studied to demonstrate that none redundant can be excited between...

A compact circularly polarized patch antenna with wide axial-ratio beamwidth (ARBW) operating at dual bands compatible for GPS satellite navigation application is proposed in this paper. The consists of two stacked patches, which account L1 band (1575 ± 2 MHz) and L2 (1228 MHz). To realize significant size miniaturization, four pillars are introduced strongly coupled to the lower patch. adjust response far-field components, backed by a modified metallic cavity, turn widen 3-dB ARBW...

A square patch antenna operating under TM <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">03</sub> mode is proposed in this paper to realize gain enhancement, sidelobe reduction, and adjustable beamwidth by reshaping the surface current distribution on resonator. On one hand, introducing transverse slots along central line of patch, medial part out-of-phase longitudinal interrupted circulate with little radiation. In way, serves as a full-wave...

A patch antenna with loading of slot and shorting pins is proposed in this paper to enhance the radiation gain without increasing size. At first, a straight transversely introduced central line patch. For dominant TM01 mode, behaves as virtual electric wall zero field maximum surface current underneath on patch, respectively. By doing so, serves an extra radiator so that slot-loaded produces equivalent three-slot array. Meanwhile, pair longitudinally placed at two symmetrical sides maintain...

A low-profile differential-fed microstrip patch antenna (MPA) using TM <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">10</sub> and xmlns:xlink="http://www.w3.org/1999/xlink">12</sub> modes is proposed in this communication toward simultaneously achieving the impedance-bandwidth enhancement sidelobe reduction. Based on transmission-line model, radiation patterns of mode MPA loaded with shorting pins slots are at first deeply investigated. The...

Transmissive and reflective metasurfaces have been extensively studied for generating an orbital angular momentum (OAM)-carrying beam. However, the existing OAM generators suffer from feed blockage, large profile, mode nonreconfigurable, narrowband. An generator that integrates multiple functions into a single module is in high demand OAM-based applications. In this study, we proposed based on folded reflectarray with high-gain low-profile broadband programmable characteristics. The...

A complete error calibration model with 12 independent parameters is established by analyzing the three-axis magnetometer mechanism. The said conforms to an ellipsoid restriction, of equation are estimated, and coefficient matrix derived. However, cannot be determined completely, as there fewer than parameters. Mathematically, derived from a different decomposition method not unique, exists unknown rotation R between them. This paper puts forward constant intersection angle (angles...

We report electronic properties of superconductivity in single crystals topological nodal-line semimetal ${\mathrm{PbTaSe}}_{2}$. Resistivity, magnetic susceptibility, and specific heat measurements were performed on high-quality crystals. observed large, temperature-dependent anisotropy its upper critical field (${H}_{c2}$). The measured for $H\ensuremath{\parallel}\phantom{\rule{0.28em}{0ex}}\mathbf{ab}$ plane shows a sudden upward feature instead saturation at low temperatures. fields...

A wideband circularly polarized (CP) patch antenna with enhanced axial ratio (AR) bandwidth via co-design of feeding network is proposed in this paper. One λ/4 resonator and one λ/2 are introduced coupled proximity to two orthogonal points a square radiator excite modes. These resonators not only function as impedance matching elements achieve equal magnitude modes wide frequency band but also provide the required 90° phase difference. In way, minima AR response appear, resulting extended...

Wideband differentially fed patch antennas under dual high-order modes for stable high gain are proposed in this communication. The working principle is verified on a circular antenna operating TM <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">31</sub> and xmlns:xlink="http://www.w3.org/1999/xlink">12 </sub> at first. Two open slots loaded to the patch's edge reconstruct current distribution of mode, thus substantially increasing broadside...

In this article, a fundamental method based on mutual conductance elimination is proposed for the ultimate decoupling of closely spaced antenna pairs. First, coupling between radiators characterized by lossy J/K inverters, and analysis with circuit models shows that traditional lumped loading can only suppress susceptance. Particularly, will not be unless further eliminated, which requires equal modal odd even modes pair. After that, antenna-shape modification proposed, three types antennas...

A quad-mode dual-band dual-sense circularly polarized (CP) single patch antenna is proposed. The four boresight radiating modes are obtained by simply loading a stub and U-slot on the patch. Characteristic mode analysis (CMA) utilized to reveal operational principles of control over antenna's frequency ratio sense circular polarization achieved independently manipulating different modes. This accomplished altering dimensions patch, stub. To further validate effectiveness proposed design...