We present new narrow-band near-infrared images together with K band spectra of highly collimated bipolar jets close to the IRAS 05487+0255 source. The jets are located at ∼ 50 West of the Herbig-Haro 110 outflow. The jets are not visible at optical wavelengths, and therefore, do not fall into the ‘standard’ Herbig-Haro object classification scheme. Nevertheless, they belong to an ever growing ...

This paper presents a radio-frequency (RF) transceiver fabricated in a UMC RF 0.18 μm CMOS process. The RF transceiver was built to operate at the 5.7 GHz ISM band. The transceiver has a total power consumption of 23 mW and it is intended for the use in each wireless node of a wireless sensor network.

There is an increasing presence of wireless LAN devices in the ISM band. Co-located operation of these devices causes mutual interference and performance degradation. This paper presents experimental results of interference measurements between sample Bluetooth and IEEE 802.11b DSSS devices.

Microwave ovens and 802.11 both use the unlicensed 2.4GHz ISM (Industrial Scientific Medical) band. Microwave ovens use this frequency to heat while 802.11 uses this for communication. The use of microwave ovens in the vicinity of an 802.11 node therefore naturally affects the node's ability to communicate. In this project we investigate how microwave oven noise interacts with 802.11 communicat...

Any new deployment of networks in the industrial, scientific, and medical (ISM) band, even though it is license-free, has to co-exist with IEEE 802.11 networks. IoT devices are typically deployed ISM creating a spectrum bottleneck for competing This paper investigates issue co-existence wireless WiFi In our scenario, we consider as “primary” or higher priority network co-existing multiple “seco...

One of the most challenging works on compact antenna design is to maintain flexibility orientation. This paper demonstrates a coplanar waveguide (CPW) fed monopole with rubber substrate at 2.45 GHz center frequency for ISM band application. The proposed attained realized gain 4.06 dB radiation efficiency around 90% peak value and bandwidth 541.5 MHz. was designed using CPW structure. CST microw...

Our main objective in this thesis is to study the effect of narrow band interference on OFDM systems operating in the 2.4 Ghz ISM band and identify ways to improve upon existing techniques to deal with them. We first consider how narrow band signals interfere with OFDM systems. Various noise variance estimation and signal to noise ratio estimation techniques for OFDM systems are then discussed....