A dual-polarized frequency-reconfigurable low-profile antenna with harmonic suppression for 5G application is presented in this letter. The proposed design consists of a pair ±45° polarized dipole antennas, two vertically placed feeding structures filtering branches, and an artificial magnetic conductor (AMC) surface. By introducing the U-shaped structure, better impedance matching performance achieved bands. Measured results show that can operate at 3.24-4.03 4.44-5.77 GHz by controlling...

Reconfigurable continuum robots exhibit programmable interaction capability, enabling them to cope with challenges poorly addressed by conventional rigid robots. However, the regulation of module type and/or sequence may result in time‐consuming and labor‐intensive problems. Therefore, situ reconfiguration schemes are required develop a simple yet robust solution for robot design. Herein, inspired structure characteristics seahorse tail, an original template based on tensegrity building...

An efficient procedure for ultrasound-assisted enzymatic extraction of crude polysaccharides from Trichosanthes Fructus (crude TFP) using response surface methodology (RSM) was developed. The Box-Behnken design applied to optimize the effects pH (X1), enzyme amount (X2), temperature (X3), and liquid-to-solid ratio (X4) on extraction. statistical analysis indicated that independent variables (X4, X2, X3), quadratic coefficients (X12, X22, X32, X42), interaction coefficient (X1X3) had...

Due to the ever increasing size of integrated circuits classical methods for automatic test pattern generation (ATPG) reach their limits. On other hand recent advances in algorithms solve Boolean satisfiability (SAT) problem allow application large instances. This suggests exploit modern SAT techniques ATPG. Here, we present a SAT-based ATPG tool that is applicable industrial circuits. The performances different SAT-solvers are experimentally evaluated and potential specific heuristics...

Crumb Rubber Concrete (CRC) can exhibit high freeze-thaw resistance, but its long-term creep behavior under various conditions remains unclear, which is essential for the safety of pavement engineering in severe cold zone. In this study, effects on CRC different stress levels were systematically analyzed by testing compressive strength, uniaxial levels, and dynamic elastic modulus. To simulate real road environment area, lowest temperature −20°C, six cycles 0, 30, 60, 90, 120, 150, seven...

The complexity of integrated circuits is rapidly growing. This leads to more and time money spent on the test these circuits. Besides minimizing logic needed for a given function testability resulting circuit becomes major issue during synthesis. One way synthesize directly convert binary decision diagram (BDD) that into circuit. It known optimizations BDD transfer derived Therefore in this paper we evaluate different optimization techniques BDDs based variable reordering with respect path...

Abstract This article designs a new miniaturized frequency selective surface (FSS) for Ku‐band absorption and low‐frequency bandpass. The (MFSS) consists of periodically arranged unit structure, each consisting an upper three‐dimensional absorbing structure bottom two‐dimensional FSS. layer is bent‐closed that mainly provides over 90% in the Ku‐band. underlying FSS which it acts as bandpass filter transmission band (2.9‐3.9 GHz). unit‐cell dimension MFSS 0.091 λ 0 × 0.054 ( free‐space...

We present a technique to derive fully testable circuits under the Stuck-At Fault Model (SAFM) and Path-Delay (PDFM). Starting from function description as Binary Decision Diagram (BDD) netlist is generated by linear time mapping algorithm. Only one additional input inverter are needed achieve 100% SAFM PDFM. Experiments given show advantages of in comparison previously presented methods.

Abstract In this letter, a new wide stopband and high gain Quasi‐Yagi filtering antenna is proposed. At the beginning of feeder line in improved Balun antenna, it integrated with stripline low‐pass filter that contributes to out‐of‐band suppression. The proposed works from 2.25 GHz 2.55 GHz, maximum 8dBi at 2.5 GHz. Moreover, possesses faster roll‐off rate GHz(8 dB) 2.8 (−20 dB ) better rejection up 12 GHz(5 times central frequency) outside working band.

The complexity of integrated circuits is rapidly growing. This leads to more and time money spent on the test these circuits. Besides minimizing logic needed for a given function testability resulting circuit becomes major issue during synthesis. One way synthesize directly convert binary decision diagram (BDD) that into circuit. It known optimizations BDD transfer derived Therefore in this paper we evaluate different optimization techniques BDDs based variable reordering with respect path...

Abstract In this letter, a new method is proposed to achieve high port isolation and wideband harmonic suppression for two closely placed asymmetric antennas by using integrated filtering structures cascaded on the feeding microstrip lines. The antenna pair operates normally at 2.34 2.6 GHz 3.31 3.69 GHz, respectively, containing WLAN band (2.4‐2.484 GHz) fifth generation (5G) bands of China Telecom (3.4‐3.5 Unicom (3.5‐3.6 GHz). Compared reference pair, has an enhancement in 40.8 38.1 dB...

Two new [6,6]-fused ring energetic molecules were designed and synthesised using 4-amino-1,2,3-triazine 2-oxide as the basic skeleton unit.

In this paper we study the testability of circuits derived from Binary Decision Diagrams (BDDs) under bridging fault model. It is shown that can be formulated in terms symbolic BDD operations. By this, test pattern generation carried out polynomial time. A technique to improve presented. Experimental results show a complete classification very efficiently.

This paper proposes a novel filtering monopole antenna with wideband harmonic rejection, which is realized by based on compact lowpass filter (LPF). The proposed has rejection from 2.68GHz up to 15GHz. 3dB cutoff frequency at operates normally 1.95GHz 2.45GHz. designed effectively exhibits 6.8 times of the central operating and its attenuation level less than -15dB.

Abstract This letter proposes a new higher isolation dual‐frequency distinct coupled monopole antenna system by using integrated low‐pass and high‐pass filtering structures. The of the antennas at 2.4 GHz 3.6 can be successfully improved 24 dB under stable radiation performances. measurement results are consistent with simulation fabricated prototype, which verifies feasibility this method. present compact frequency could chosen as candidate for multiband anti‐interference terminal systems.

A low-profile dual-polarized MIMO antenna array with high isolation is proposed in this paper. As shown paper, the unit of presented two crossed dipole antennas. The height just 10mm. It a low profile because application AMC surface. result, can offer an impedance band from 2.50 GHz to 2.68 when VSWR lower than 1.5. At same time, also presents great performance radiation patterns, gain 9dBi and between ports reach 25dB. be applied base stations.

Abstract In this research letter, a new type of miniaturized ultra‐wideband planer equiangular spiral antenna is designed. This present can cover an operating bandwidth 0.8‐6 GHz. the design, original effectively by introducing three special branches to extend electrical length in working band. method expands antenna, and finally realizes miniaturization, antenna. Compared with reduce size about 37.5% at low frequencies. Finally, has good performances, which are verified simulation...

Abstract A dual‐polarized antenna that simultaneously achieves low profile, crosspolarization, and high isolation is presented in this article. Our research indicates the irregular currents on artificial magnetic conductor (AMC) surface our design can lead to an extra coupling. Because short pins regularize AMC work as a balun, achieve crosspolarization port isolation. The proposed profile height of 0.08 λ 0 ( represents wavelength free space at 3.4 GHz) 23.5% (3.0‐3.8 relative bandwidth....

In this article, a broadband dual-polarized microstrip antenna with low profile and compact horizontal size is presented. By using the grid-slotted patch, dual modes can be excited to broaden operating bandwidth of proposed antenna. A broad 25%(1.4-1.8 GHz) for return loss >10 dB achieved in our design. Two orthogonal linear polarization waves are when two pairs aperture utilized couple patch. Current distribution varies frequency which results varying beam width. Consequently, roughly flat...

With the establishment of advanced metering infrastructure (AMI), more and deep learning (DL) methods are being used for electricity theft detection. However there still problems such as construction a DL model that better fits detection task, sample imbalance in data set overfitting limit potential models. Therefore an novel end-to-end solution based on to solve these is proposed this paper. First, we construct Transformer network, which extracts global features from consumption by...

In this paper we study the testability of circuits derived from binary decision diagrams (BDDs) under bridging fault model. It is shown that can be formulated in terms symbolic BDD operations. By this, test pattern generation carried out polynomial time. A technique to improve presented. Experimental results show a complete classification very efficiently.