A printed dipole antenna with integrated balun is presented. The radiating structure is a two-element dipole with resonances at 900 and 1700 MHz, with the balun providing one extra resonance at each band. By co-designing the radiating element with a Marchand balun modified for dual-band operation, an antenna covering the cellular bands 824-960 and 1710-2170 MHz has been achieved. Measurements on a fabricated antenna on low-cost FR-4 substrate show antenna efficiencies of .80 and .70% in the lower and upper band respectively. Despite the use of a dual-element radiator, the radiation pattern that is close to omni-directional H-plane is obtained.

The research topic focuses on performance evaluation in business organizations with varying ownership structures. Fundamentally changed planning cycles, epidemics, war, raw material shortages, and energy crises have rewritten the everyday life and planning cycles of controlling and HR. The unified labor market and companies’ preparedness for the new situation, the constraints of project-based short planning periods, have led to exciting results in performance assessment. The questionnaire research aimed to shed light on the need for performance appraisal, the demand for it on the part of employees and employers, and the methods and time intervals that are not appropriately used, showing this for different company sizes and ownership structures.

Increased controlling functions are a natural part of the day-to-day activities of companies operating in market conditions. Its successful functioning determines the market value of the company. In addition to measuring organizational performance, it also has a vital role in monitoring and evaluating individual performance on an ongoing basis, thus providing continuous feedback to employees and managers. Accordingly, the IT sector and modern IT solutions are taking a significant part in the operation of companies. With the development of these solutions, Industry 4.0 is already taking companies into the world of modern ICT technologies and is appearing at all levels of companies. Companies developing ERP systems are increasingly focusing on the dissemination of performance evaluation modules as part of controlling. Not only ERP systems but also serious HRM support solutions have emerged, and controlling has been complemented by measuring the performance not only of the whole organization but also of individual employees. Today, various publications discuss the fact that the cards have begun to be dealt with again in markets where companies must meet a myriad of conditions to stay afloat. We are not talking here about their ability to develop but merely about their efforts to maintain their market position. This is the environment in which controlling, which now covers a much more comprehensive range of areas, including human resources, is working. This process of controlling has extended from large companies to public interest entities, as they must operate effectively in the same environment as other companies with a similar profile but a different organizational structure, typically private. Not to mention the fact that the labor market is the same, where recruitment is not enough, but retention is just as necessary.

No abstract

The timeliness of the topic the domestic companies in more waves afflicting, the treatment of a situation took shape because of COVID gets it, which brought fundamental changes in the companies' daily function and the execution of his plans. I would like to detail the times before COVID in my lecture onto a typical corporate management situation, with a strange look onto the processes of the projects, and onto the informatics solutions being attached to this functionally, his role in the accomplishment of the daily tasks. Tightly here owing question, that in the consecutive epidemic waves the treatment of this area, how the insurance of the function occurred, in what changed, developed. In this determining element, it is, that the project to be examined with a how important classification in the given company's life, how much it felt lifted one in this situation. The other important part of the mentioned decision is that the resources insured till then, let it be the material, technical or human condition, onto acting in the future you are for a chin neither, you are in a measure reduced possibly, ergo this may mean the change of the tasks, adjourning the fulfillment of the given milestones. The epidemic took shape on the hook of his treatment The validation of various safety regulations poses a serious task to the companies, which one not only the protection of the human resources but reports the information safety. To this suitable and onto enough informatics toolbars and it operator onto staff they need, for who a heavier task waits likewise, some, that characteristically on the same one combination and size apparatus makes it the informatics systems attached to the company's daily, normal function, the operating of equipment. Additional strategic questions arise besides this with the company's function relatedly, which influence they have onto the fate of projects, the change of their content and their hierarchy. The characteristically portfolio management in a system treated, there are project tasks to be realized under realization in slipping on first stairs developed based on the justification already. The safe working and the IT because of the bars of supporting systems, they go through a natural deceleration, since the project staff himself amounts to the epidemic provided it to dangers. The summary can be related, that where the character of the organizational culture or the tasks demanded a more informatics base early already, those administrative project devices, the systems, clouds support the execution, well in the future there, mainly if the so-far site is not attached to by the character of realization inevitably. Where and in as much the on-line space not anymore enough, the corporate classification will decide it there because the personal presence, supervision or environment are necessary, that from the disadvantage following from this, what allows the the project task and where that border, where the fulfilment of this gets into fundamental.