نجانے کس لیے
سحرِ حزیں،مسائے الم،شبِ ملُول،دلِ غمگیں
حسرتِ مسکیں،ادا س راہیں ،کھوئی کھوئی نگاہیں
بنا ہم سفر،نگر نگر دربدر
سانسیں بے قرار ،پا فگار
بے رنگ آسماں ،دھواں ہی دھواں
آرزئوں کے جال میں
حسرتِ وصال میں،گم کسی خیال میں،کسی کے ملال میں
بھیگی ہے آستیں، یارم نہیں قریں
ذاتی ملکیت میں کچھ آنسو،اس کا وجود نہیں جس کی جستجو
دلِ منتظر اداس ہے ،کوئی آس نہیں پھر...
Developmental projects are essential ingredients of prosperity and well-being. Every nation has to ensure that her people are living in a perfect and safe sociopolitical environment. However, it varies from region to region and place to place. UK as a country is a big economy which is capable of giving its people the type of security they need. For this purpose, various types of strategies have been emphasized which enable the government to look for the benefit of its people. Open data system is one of these important developments which have been initiated by the UK government to provide huge access to databases. It improves their learning and knowledge, and gives the opportunity to think ‘out of box’. It also enables people to polish their learning skills and take things out of their resources and utilize them fully. Although, there is some compulsion on the use of private data sources, yet it is necessary to know that not all data are confidential. The research looks into the pros and cons of using open data systems and to assess its impacts on the social and political development in UK. The use of open data system is not only beneficial for the people to perform their daily life tasks, it is important to evade corruption and foster great accountability of national institutions. So, there remains feeble chance of witnessing corruption in the society that could cause chaos in the nation. The use of open data systems is important for boosting up innovation and creativity for a developing country like Pakistan. Open data system has been seen playing a big part in establishing a trend of innovative growth pushed by the availability of these resources. The influence and impact of ‘Open Data’ has largely been observed during the recent Coronavirus pandemic (Covid-19) where the government has utilized the data to tackle the disease in Pakistan.
Multiple Input, Multiple Output (MIMO) antenna technology is being used extensively to meet the current wireless standards. It consists of multiple transmit and receive antennas to increase the signal capturing power and throughput. However, to achieve these goals, it is necessary to keep the coupling between antenna elements in an acceptable range so that multiple signals can effectively be resolved. In most of the existing MIMO antennas, separate antenna elements are used for occupying spatial diversity technique. In such a diversity scheme, isolation enhancement techniques may effectively be applied between these antenna elements. However, in spatial diversity, multiple antenna elements occupy more space to be accommodated in the devices with size constraints. Moreover, at higher frequencies, losses of metallic antennas become severe which significantly degrade the performance of the MIMO system. Recently, a possible alternative to these metallic antennas has been introduced in the form of dielectric resonator antennas (DRAs). DRAs offer potential advantage of high radiation efficiency and negligible conductor losses. DRA supports more than one resonant modes at different frequency bands, enable to meet the requirements of different applications with a unique device. Multimode excitation feature in the DRA makes it a suitable choice for use in multiband MIMO applications. However, more critical and challenging issue is coupling between modes excited in the single DR volume, especially when used for dual-band MIMO applications. This is the reason that dual-band MIMO DRAs are rarely found in literature. This thesis is composed of two single-band and four dual-band MIMO DRA designs. The first single-band MIMO DRA is excited by means of symmetric microstrip feeding and other DRA is excited by means of hybrid feeding mechanism. It is observed that hybrid feeding provides more isolation between antenna ports. This concept is extended to the dual-band MIMO DRA designs using similar and hybrid feeding mechanisms. The first dual-band MIMO design consists of symmetric microstrip slot feeding for pattern diversity at both WiMAX and wireless local area network (WLAN) bands. In the second design, compactness is achieved by stacking the DRA with high a permittivity material. Orthogonal modes at the two bands are xi excited in the DRA by coaxial probes and coupling between two ports is reduced by means of defected ground structure (DGS). Almost 80 % volume reduction has been achieved in this design by means of stacking approach. The last two designs presented in this work are based on hybrid feeding mechanism. Both of the dual-band MIMO DRAs have also been investigated for geometric scalability of the designs. As the resonant frequency of the DRA is inversely related to its dimensions, therefore, same design with different dimensions can be operated on other frequency bands as well. This property is termed as geometric or size scalability of the design. This re-sizing or scalability of the dual-band MIMO DRAs is a very interesting property and has not yet been investigated in literature. Frequency ratio is the ratio of higher band to the lower band which is an important parameter in the dual-band designs. Frequency ratio as a result of design scalability has also been presented in this work