Electronics packaging evolution involves both architectural and technology considerations. In this paper, we present the design and measurements of Single-Input-SingleOutput (SISO) dual-band filters operating at ISM 2.4-2.5 GHz and UNII 5.15-5.85 GHz frequency bands, using the novel ”dual behavior resonators” technique. The filters have been fabricated using Low Temperature Co-fired Ceramic (LT...

A dual-band circularly polarized stacked microstrip antenna for ISM Bands (2.45GHz & 5.8GHz) applications is designed and implemented. By stacking two different corner-truncated square patches in a dielectric substrate layer, the microstrip antenna for dual-frequency circular polarization (CP) can be achieved with −11.5 dB and −12.8 dB measured return loss for 2.45GHz and 5.8GHz. Semicircular g...

In this paper, an T shaped dualband microstrip antenna fed by coaxial feed is presented for wearable applications in the ISM band (2.42.5GHz,5.7-5.8GHz).This antenna provides dual band performance. As for the wearable applications, we use a felt as the substrate to make sure the antenna can bend follow human body. The overall size of the proposed antenna is 44mm*36mm*3mm. Different parameters l...

abstract purpose-the purpose of this paper is to review a sample of the literature relating to interpretive structural modelling (ism) and its deployment for modelling purposes in the area of supply chain management (scm). design/methodology/approach- the literature is examined from the three perspectives. first, concept of ism and examines ism as modelling technique. second, use of ism by the ...

Chandra observation of the central region of the A1060 cluster of galaxies resolved X-ray emission from two giant elliptical galaxies, NGC 3311 and NGC 3309. The emission from these galaxies consists of two components, namely the hot interstellar medium (ISM) and the low-mass X-ray binaries (LMXBs). We found the spatial extent of the ISM component was much smaller than that of stars for both ga...

T oday's wireless local area networks are designed to support mobile computing in small areas such as a building, park, airport, or office complex. html) defines both an infrastructure mode, with at least one central access point connected to a wired network, and an ad hoc or peer-to-peer mode, in which a set of wireless stations communicate directly with one another without needing a central a...

We report Mopra (ATNF), Anglo-Australian Telescope, and Atacama Submillimeter Telescope Experiment observations of a molecular core in Carina, BY72 = G286.21+0.17, which give evidence of large-scale gravitational infall in the dense gas. From the millimetre and far-infrared data, the core has mass ∼ 5,000 M⊙, luminosity ∼ 2–3×10 L⊙, diameter ∼ 0.9 pc, and mass infall rate ∼ 2.4×10 −2 M⊙yr . If ...

The distribution of CO J = 9 → 8 (1.037 THz) emission has been mapped in OMC-1 at 35 points with 84 resolution. This is the first map of this source in this transition and only the second velocityresolved ground-based observation of a line in the terahertz frequency band. There is emission present at all points in the map, a region roughly 4 by 6 in size, with peak antenna temperature dropping ...

Recently, several work related to channel assignment for MCN-type systems were reported. Wu et al proposed diverting traffic from the congested cells to the non-congested cells (Wu et al., 2001; Wu et al., 2004), which is achieved by relaying traffic through unlicensed frequency band, such as the industrial, scientific and medical (ISM) band. For iCAR (Wu et al., 2001; Wu et al., 2004), ad hoc ...