## 1 Introduction  
Wireless communications have been undergoing rapid development and are highly requested for communication services over long distances that use high data rates [1]. Nowadays, satellite communication is considerably important for utilization in remote areas and for Internet applications, thereby providing stable connectivity and minimum redundancy. In remote areas where it is difficult to establish a grid electricity transmission, the operation of a stand-alone communication service for long-term use is becoming easy with the help of an independent and continuous supply of electricity. Such steady power supply can be realized by means of photovoltaic (PV) technology. PV devices can be successfully utilized to convert sunlight energy into electricity via solar cells comprised of various architectural designs and active materials [2; 3; 4]. The integration of solar cells with antennas can overcome the problem of autonomous communication systems and helps in reducing design costs. In such applications, data information is collected or transmitted through electromagnetic waves from and to the satellite by means of two-way wireless communication systems. The microstrip antenna is a crucial and key component for these systems, which shows interesting properties such as lightweight, high broadband gain, and low profile [5; 6]. In 1995, the first connection of a 2.225 GHz microstrip patch antenna with solar cells was proposed for microsatellites application [7]. The solar cells had to be placed at a reasonable distance from the radiating edges of the microstrip patch in order to avoid performance degradation. The integration of photovoltaic cells with patch antennas could save real estate and reduce the design costs. A review of the literature showed that various studies, aimed at supplying antennas with solar cells for terrestrial and satellite applications, have been performed [8; 9; 10]. Along this line, various designs and architectures were proposed to obtain the maximum insolation of the solar cells, such as mesh patch antennas [11; 12; 13] and transparent antenna conductors [14; 15]. It is, however, known that not all these designs are definitely exposed to 100% insolation and the integration of the PV cells are limited to the inorganic solar cells [16; 17]. Inorganic solar cells suffer from the high cost and high-energy requirement during the production process. Very recently, organic solar cells (OSCs) have received considerable attention due to their flexibility, ambient solution-processability, low cost, environmentally friendly, and lightweight properties [18; 19; 20; 21; 22; 23]. The compatibility issue is considered to be one of the main challenges that arise during the coupling of solar cells with the antenna so that the antenna does not block the solar cell from functioning properly and so that the performance of the antenna is not compromised with the presence of the solar cell. We anticipate that the use of OSC with CPW-fed monopole antennas can be specifically useful to avoid the possible mismatches that may arise during the incorporation of solar cells with antennas. This is because organic materials are less vulnerable to the attenuations by electromagnetic radiation compared with the inorganic materials. Besides, the active layer thickness of almost all organic solar cells are within the nanometer scale [24; 25; 26], which is thin enough, compared to the microscale thickness of inorganic solar cells. The most widely used OSC is based on the mixture of organic poly (3-hexylthiophene-2,5-diyl) (P3 HT) and methanolofullerene (PCBM) as the active layer of the device [27]. These materials possess excellent properties such as chemical stability, high optical absorption, good thermal and electrical property, as well as excellent solution process ability, making them good candidates for the mass production of OSCs [28; 29]. In this work, a broadband conventional coplanar waveguide (CPW) printed monopole antenna to be integrated with an organic solar cell is suggested.