Highly Intergrated X-Band LTCC Receiver Module

Abstract

Abstract-A highly integrated X-band receiver module is designed based on a 10-layered low temperature co-fired ceramic (LTCC) substrate. A compact X-band bandpass filter (BPF), an intermediate frequency (IF) band hybrid and an IF band BPF are proposed for the receiver module. The measured gain parameter of the proposed receiver is higher than 51 dB, and noise figure (NF) and image rejection are better than 2.5 dB and 37 dB, respectively. The overall size of the receiver module is only 54 mm × 15 mm × 1 mm. Comparisons and discussions are also provided.

MXene and MoS3−x Coated 3D‐Printed Hybrid Electrode for Solid‐State Asymmetric Supercapacitor

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“…As the central Mo atoms possess a wide range of oxidation states of +2 to +6, the MoS 2 leads to promising pseudocapacitive behavior. [ 30,31 ] Recent reports in the energy storage field suggest that the integration of such 2D nanomaterials in the 3D structure such as porous scaffold, film, or networks could solve the generic issues of poor ionic and electronic transport in electrode materials. The 3D printing of electrode materials can easily make 3D structures with customized shapes.…”

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“…10 11 In particular, formal [2+2+1] cycloaddition methods offer an atom-economical route to pyrroles from alkynes and nitrene precursors (Scheme 1 ). Innovative work from the Tonks group has demonstrated that titanium complexes are effective catalysts for pyrrole synthesis from diazenes 12 13 14 15 16 17 18 19 and azides 20 21 as the nitrogen-containing components of [2+2+1] cycloaddition. Many internal alkyne substrates, particularly those containing silyl substituents, 15 17 undergo this process with excellent product selectivity.…”

Effect of different stabilizer systems on chromatic aberration of Nylon6

“…The molecular chain of nylon 6 contains polar amide group-CONH-, which is easily affected by environmental factors such as heat and oxygen during hot processing and use, and the appearance of nylon 6 turns yellow. In order to improve the stability of nylon 6, various additives are often added [4][5][6][7][8][9][10][11] . Wang Haili [12] prepared nylon 6 with and without stabilizer, and after thermal oxidation aging at 160℃ for different time, tested its aging properties such as IR, XRD and DSC.…”