The proposed MIMO satellite antenna consists of two patch element with common substrate and ground as shown in Fig.1.įig.1 (a), 1(b): Front and bottom view of antenna designĪ dual 50 line feed is located at the left center of patchs in which port 1 and 2 is for C and Ku band patchs respectively. Proposed design, Section III discusses the results. Section II discusses the band reconfigurable concept and introduces our newly The proposed antenna design is studied and simulated using CST Microwave Studio. The dual band operation of the antenna for uplink and downlink frequency of C and Ku bands is obtained by placing dual ports simultaneously on a same antenna feed by a dual 50 line feed.
The antenna structure comprises a modified E and hammer shaped patch, in which E and hammer shaped patch is for C and Ku band applications respectively. In this paper, a novel band reconfigurable multi port satellite antenna for C and Ku band applications is presented as a new band switching MIMO patch antenna. The concept of MIMO antenna - has emerged as a possible solution as they can work on the multiple inputs and multiple outputs simultaneously with proper isolation between them. The band reconfiguration antenna is obtained by adjusting the path of currents on the antenna or by altering the geometry of the radiating device but the shortcoming of such design was that they can work only on a single band at a time. In general this can be done in two ways either using a band/frequency reconfigurable antenna or by using a MIMO (Multiple Input Multiple Output) antenna. Integrating the C- band and Ku-band satellite application in a single antenna module may help in utilizing the spectrum resources more efficiently. However, implementing and integrating more than one function in the single communication system may help in cost minimization and size reduction of the complete module. For the designing of communication module, it is common to integrate antenna subsystem which can reciprocate certain standard requirements by wireless system. Operations in a single component for various wireless communication services, high performance antennas with desired radiation properties have to be developed. To fulfill the great demand of multi band Nevertheless, with the increase of frequency bands, the design complexity associated with antenna also intensified. The expected scenario is certainly directed towards the size reduction of the multiple frequency band antennas of low profile, enhanced portability and multi- functionality. This fact has triggered the wireless communication community to find new and more efficient ways of utilizing the frequency spectrum. The further exploitation of the available frequencies by other services possesses practical and regulatory difficulties. The uplink frequency is kept higher than the downlink frequency for proper isolation and adequate characteristics for downlink signal, but as the electromagnetic spectrum is a shared resource, limited and regulated, that is more and more congested with the increasing number of satellite users. The satellite then receives and amplifies the signal and retransmits it back to earth this signal is known as downlink signal. A signal from an earth station to a satellite is an uplink signal. Keywords: C-band, CST, Ku-band, Microstrip antenna, MIMO.Ī typical satellite link involves the uplink and downlink signal. and the same is tested for return loss, impedance bandwidth, directivity, surface current and impedance. The performance of the antenna is fabricated on low cost FR-4 substrate with a dielectric constant of =. The band reconfiguration ability of the antenna is obtained by placing two ports simultaneously on a same antenna feed by a dual 50 line feed. The proposed antenna structure comprises a modified E and hammer shaped patch, in which E shaped patch is for C band applications and the hammer shaped is for Ku band applications. This paper depicts an outline to design a novel compact and low profile band reconfigurable MIMO (Multiple Input Multiple Output) microstrip patch antenna for possible applications in C and Ku band satellite applications. This attracts increasing interest on the design of band reconfigurable satellite antennas which can help to use spectrum resources for satellite communication more efficiently. M.Tech Student Department of ECE PCET, Punjab, IndiaĪmeeta Assistant Professor Department of ECE PCET, Punjab, IndiaĪbstractThe fast development of wireless technology and continues increase in the number of users in satellite communication results in spectrum congestion and limited bandwidth. Band Reconfigurable Multi Port Satellite Antenna for C and Ku Band Applications
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