A differential-fed gain-enhanced dual-polarized dielectric patch antenna operating at higher order TM121 and TM321 modes is investigated in this letter. The introduction of grounded bars a conventional square resonator (DPR) key technique the proposed design. It not only moves mode upwards to enhance gain antenna, but also enables be excited combined with expand bandwidth. Their corresponding degenerate DPR are used generate operation. By using two identical pairs differential feeding lines...

A novel pattern-reconfigurable dielectric resonator (DR) antenna with endfire beam-scanning feature is proposed in this letter. The consists of a DR, switchable director 10 p-i-n diodes, and differential feeding structure. differential-fed DR operating TE <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">01δ</sub> mode can provide primary pattern wide beam. Based on this, large-coverage performance be obtained by introducing placed front the DR....

This letter proposes an asymmetrical low-radar cross section (RCS) frequency selective surface (FSS)-based low band (LB: 1.7-2.7 GHz) antenna for the application in tri-band shared-aperture array. In array, high 1 (HB1: 3.3-3.8 antennas and HB2 (4.8-5 are distributed on two sides of asymmetric LB with four FSS unit cells. The bandpass property cell is formed after inserting a patch into square loop, meanwhile, it can be controlled by cutting more pieces. To respectively suppress blockage...

A novel pattern-reconfigurable dielectric resonator antenna (DRA) with compact structure and high efficiency is proposed in this letter by introducing a pair of switchable directors. The directors are arranged on both sides an omnidirectional DRA, which operates the TE01δ mode. Their directing function can be controlled switching <sc xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">on</small> / xmlns:xlink="http://www.w3.org/1999/xlink">off</small>...

This letter proposes a microstrip switchable dual balun using symmetrical three-coupled-line structure, which is used as feeding network for designing pattern-reconfigurable endfire antenna. By adding p-i-n diodes to the ends of coupled quarter-wavelength lines, proposed enables three-status operation while it has compact size and simple configuration. Based on this, antenna designed, fabricated, measured. Good agreement between simulated measured results can be observed. The peak gain two...

This paper presents a design approach of broadband filtering quasi-Yagi DRR Antenna using strip-loaded dielectric ring resonator (DRR) and near-zero-index (NZI) metamaterial (NZIM). The strip is loaded to the inside wall so that TE <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">01δ</sub> xmlns:xlink="http://www.w3.org/1999/xlink">21δ</sub> modes can be close. Meanwhile, they function as dual-mode magnetic dipole (M-dipole) driver differentially...

A simple wideband decoupling method for monolithic multielement dielectric patch (DP) antenna (DPA) array is presented in this letter. Thanks to the multimode of DP resonator, TM <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">40</sub> and TE xmlns:xlink="http://www.w3.org/1999/xlink">42</sub> modes, which can be viewed as four xmlns:xlink="http://www.w3.org/1999/xlink">10</sub> xmlns:xlink="http://www.w3.org/1999/xlink">21</sub> are...

This paper presents a design approach of dual-/wide-band quasi-Yagi antenna using dielectric resonator (DR). A single rectangular DR operating at TE <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1δ1</sub> and xmlns:xlink="http://www.w3.org/1999/xlink">1δ3</sub> modes can be differentially fed by the coplanar strip line (CPS) then is used as driver, which functions dual-mode magnetic dipole (M-dipole) resulting from modes. Thus, dual-band with...

A novel wideband decoupling design for slotted dielectric patch (DP) antenna (DPA) is proposed. Thanks to the multimode characteristic of DPA, TM <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">10</sub> mode and antiphase xmlns:xlink="http://www.w3.org/1999/xlink">20</sub> are excited simultaneously. The air tunnels employed incorporate modes expanding bandwidth. Since two modes, introducing strong inductive coupling between DPAs, can be...

This letter presents a simple and effective self-decoupling method for dielectric patch (DP) antenna (DPA) by choosing proper structural parameters, without adding extra components. By theoretical analysis, the attenuation constant of employed fundamental TM <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">01</sub> mode outside DP is controlled parameters resonator, which crucial decoupling between two adjacent DPAs. It found that larger mode,...

A dual-polarized compact broadband filtering differential dielectric resonator antenna (DDRA) is proposed. For each polarization, an electric dipole loaded on the symmetric plane of (DR) and utilized to excite DR, which further stimulates upper patch (DP). Three resonances, half-wavelength resonance dipole, <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex-math notation="LaTeX">$\mathop {\mathbf{TE}}\nolimits_{\mathbf{111}}^y...

In this paper, a new extraction method for the dielectric constant of PCB material is proposed, which based on S-parameter inversion method. The calculation process detailed and an application example given. According to simulated S-parameters, while with proposed method, applicable frequency ranges set published expressions microstrip lines are obtained. With calculated results, accuracy constants, obtained from expressions, analyzed. work helpful provide reference calculate characteristic...

An investigation of simultaneous switching noise (SSN) and electromagnetic compatibility (EMC) issues in a physical model system package (SiP) is presented this paper. SSN simulation conducted time domain with an extracted which contains components, drivers terminal resistors. In addition, interference (EMI) from the SiP observed far field near field. Far-field performed simulated microwave anechoic chamber environment near-field result obtained by scan simulation. The results show that...

A new technology for expanding the axial ratio (AR) bandwidth of circularly polarized (CP) dielectric patch (DP) antenna while maintaining low-profile characteristic is proposed first time. By making full use multimode DP resonator, two pairs degenerate modes (ie, TM101 and TM011, TM121 TM211) are selected broadband design. The key to that according EM field distribution modes, four air holes introduced in their position size elaborately designed discriminately control frequency modes. Then,...

Wideband self-decoupling of bandwidth-enhanced dielectric patch (DP) filtennas with stable filtering response are proposed in this letter. The TM101 and TE121 modes the DP combined to design a wideband antenna while its high-order TM111 mode is used introduce an intrinsic upper radiation null, leading good response. Sequentially, 1×2 have been taken as example verify that improving isolation can keep performance filtenna array basically consistent original element, which concept for first...

For the first time, rectangular dielectric resonator (DR) operating in higher-order TE3δ1 mode is investigated and used as a magnetic-dipole driver to design quasi-Yagi antenna with high gain. further enhancing gain, near-zero-index (NZI) metamaterial (NZIM) proposed instead of traditional directors put front DR driver. It simple structure composed set parallel metallic lines printed on substrate along end-fire direction. Benefiting from operation NZIM, realized gain can reach 10.3 dBi,...

In this letter, a pattern-reconfigurable endfire antenna with enhanced gain and high front-to-back ratio (F/B) is proposed. A dielectric resonator (DR) excited in TE <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2δ1</sub> introduced to form the magnetic dipoles. Along metal dipole attached on bottom surface of DR, two pairs magnetoelectric (ME) dipoles can be equivalently obtained. Benefiting from ME dipoles, beam steering realized by changing...

A test method for evaluating the radiated emission of IC modules is presented in this paper and a platform based on TEM cell built. The whole process includes verification designed testing PCB, MCU under different working conditions. Thus, introduced helpful to make reasonable choice suitable module system application.