Two Miniaturized Printed Dual-Band Spiral Antenna Designs for Satellite Communication Systems

In this contribution a dual-band, dual-polarized microstrip antenna element for array applications is presented. The patch antenna is designed to operate simultaneously at around 30 and 20 GHz, the up- and downlink frequencies of modern Ka-band satellite communication systems. The antenna is smaller than half the freespace wavelength at 30 GHz to enable its utilization as array element of dual-band ground terminals. Integrating transmitter and receiver circuits allows, in turn, for a very compact active terminal solution. To minimize production cost, the design is carried out in standard multilayer printed circuit board technology. The antenna features two distinct polarization ports suitable for either dual linear or dual circular polarization if both ports are excited in quadrature. The single antenna design process is described in detail and simulation and measurement results are presented. Finally, different arrays based on this patch antenna are evaluated by simulation and measurements.

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Implementation of Single Band Dual-Polarized for Satellite Communication using MISO System

International Innovative Research Journal of Engineering and Technology ◽

10.32595/iirjet.org/v6i1.2020.135 ◽

2020 ◽

Vol 6 (1) ◽

pp. EC-49-EC-60

Author(s):

Yusuf Durachman ◽

Keyword(s):

Bit Error Rate ◽

Error Rate ◽

Communication Systems ◽

High Performance ◽

Satellite Communication ◽

Channel Modeling ◽

Single Band ◽

Dual Band ◽

Satellite Technology ◽

Dual Polarized

MISO (Multiple-Input Single-Output) similar architecture of most terrestrial wireless network networks instead of more and more scientists striving to apply MISO technology to satellite technology, it can be used to achieve a lower rate of application bit error and risk of complications, while managing increased power boost technology. In mitigating the phenomenon increasingly crowded networks, sites, and increasingly strained sources and frequency of orbital interacting. That channel electricity, bit error rate, and single-band dual-polarized probabilities of MISO outage communication systems are evaluated in the paper. In the first step, when the XPD (Cross-Polarization Discrimination) antenna in a certain organism is greater than 1. With the XPD change, the channel throughput increases in scale linearly. Second, under BPSK modulation, it analyses the bit error rate BER of the specification. The design incorporates a sufficiently low (BER) when the SNR is substantial; analysis of the frequency of outage of a distributed MISO system demonstrated when the signal to noise ratio (SNR) is massive, the handset would maintain the prospect of an outage low enough. Assessment of the spectral range of satellite communication, in the analysis process, the criteria of the rice channel are applied to the channel, review excluding certain traits of the dual-polarized satellite MISO. The public would provide great feedback for the productivity of the future of MISO satellite technology. In a previous paper, the author designed a channel modeling dual-band for satellite communication using the MIMO technique. Using this technique, the system cannot achieve greater performance and at the same time using a dual-band will decrease the system's capability. To decrease the above issues, the paper introduces a new method called the MISO system. Using the MISO technique, the system can gain high performance and the system will get greater bandwidth, BER, and SNR. The advantage of using single-band dual-polarized is, uplink and a downlink frequency of the satellite can be calculated very easily and accurately.

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A Compact C-Band Bandpass Filter with an Adjustable Dual-Band Suitable for Satellite Communication Systems

Electronics ◽

10.3390/electronics9071088 ◽

2020 ◽

Vol 9 (7) ◽

pp. 1088 ◽

Cited By ~ 2

Author(s):

Ali Lalbakhsh ◽

Amirhossein Ghaderi ◽

Wahab Mohyuddin ◽

Roy B. V. B. Simorangkir ◽

Nima Bayat-Makou ◽

...

Keyword(s):

Mobile Communications ◽

Communication Systems ◽

Satellite Communication ◽

Bandpass Filter ◽

Satellite Communications ◽

Dual Band ◽

Coupling System ◽

Efficient Coupling ◽

Quality Response ◽

Insertion Losses

A narrowband dual-band bandpass filter (BPF) with independently tunable passbands is presented through a systematic design approach. A size-efficient coupling system is proposed with the capability of being integrated with additional resonators without increasing the size of the circuit. Two flag-shaped resonators along with two stepped-impedance resonators are integrated with the coupling system to firstly enhance the quality response of the filter, and secondly to add an independent adjustability feature to the filter. The dual passband of the filter is centered at 4.42 GHz and 7.2 GHz, respectively, with narrow passbands of 2.12% and 1.15%. The lower and upper passbands can be swept independently over 600 MHz and 1000 MHz by changing only one parameter of the filter without any destructive effects on the frequency response. According to United States frequency allocations, the first passband is convenient for mobile communications and the second passband can be used for satellite communications. The filter has very good in- and out-of-band performance with very small passband insertion losses of 0.5 dB and 0.86 dB as well as a relatively strong stopband attenuation of 30 dB and 25 dB, respectively, for the case of lower and upper bands. To verify the proposed approach, a prototype of the filter is fabricated and measured showing a good agreement between numerically calculated and measured results.

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Design and Analysis of an UWB Printed Monopole Antenna with Hilbert Curve Fractal Shaped Slots for Multiple Band Rejection Functionality

Advances in Wireless Technologies and Telecommunication - Handbook of Research on Advanced Trends in Microwave and Communication Engineering ◽

10.4018/978-1-5225-0773-4.ch003 ◽

2017 ◽

pp. 85-114

Author(s):

Anirban Karmakar

Keyword(s):

Frequency Band ◽

Communication Systems ◽

Satellite Communication ◽

Dual Band ◽

Hilbert Curve ◽

Communication Services ◽

Ieee 802.11A ◽

X Band ◽

Multiple Band ◽

Printed Monopole Antenna

In this chapter, a compact dual band notched Ultrawideband (UWB) antenna with fractal shaped Hilbert curve slots (HCS) is presented. The antenna covers the frequency band from 2.5 GHz to 12 GHz for VSWR=2 and also shows stable radiation patterns throughout the operating frequency band. By introducing Hilbert Curve fractal Slots (HCS) in the antenna, band notch characteristics have been achieved. The HCS renders the capability to reject 5.15-5.825 GHz band assigned for IEEE 802.11a and HYPERLAN/2 and also 7.9-8.4 GHz band assigned for X-Band uplink satellite communication systems where the gain is suppressed very well in the desired WLAN and X-Band. The antenna gain varies from 3dBi to 5dBi over the operating band. Novelty of this design lies in achieving miniature notch structure which has higher degree of freedom for adjusting notch parameters and unsusceptible to coupling with other notches. The antenna can be used for various mobile communication services such as DCS, IMT-2000, UMTS, DMB and UWB.

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A Double Combined Symmetric T-shaped Slots and Rotated L-shaped Strips Inspired UWB Antenna for C and X-band Elimination Filters

Advanced Electromagnetics ◽

10.7716/aem.v9i1.1114 ◽

2020 ◽

Vol 9 (1) ◽

pp. 35-40

Author(s):

M. Elhabchi ◽

M. N. Srifi ◽

R. Touahni

Keyword(s):

Communication Systems ◽

Satellite Communication ◽

Ground Plane ◽

Surface Current ◽

Dual Band ◽

Uwb Antenna ◽

Ansoft Hfss ◽

Operating Frequency Range ◽

X Band ◽

Parametric Effects

In this paper, we present a modified UWB antenna with hexagonal slotted ground plane inspired with a double combined symmetric T-shaped slots and dual rotated L-shaped strip for dual band notched characteristics. Initially, the operating frequency range is from 3GHz to 12 GHz. To eliminate the unwanted C-band (3.625-4.2GHz) and the entire uplink and downlink of X-band satellite communication systems (7.25 -8.39 GHz) frequency bands, we are investigating the conventional UWB patch antenna and loaded it with a mentioned strips and slots respectively. The performances of the antenna are optimized both by CST Microwave Studio and Ansoft HFSS. To further analyze the parametric effects of the slots and strips, the surface current distribution is presented and discussed. The antenna gain versus frequency gives an acceptable value except the notched band regions, these values are reduced from its normal to be a negative in the notched bands (3.625-4.2GHz) and (7.25 to 8.39 GHz).

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A Novel UWB Antenna with Reconfigurable Notch Bands

International Journal of Innovative Technology and Exploring Engineering - Special Issue ◽

10.35940/ijitee.i1012.0789s19 ◽

2019 ◽

Vol 8 (9S) ◽

pp. 73-79

Keyword(s):

Communication Systems ◽

Satellite Communication ◽

Dual Band ◽

Uwb Antenna ◽

Rf Switches ◽

Feed Line ◽

Notch Band ◽

X Band ◽

Microstrip Feed Line ◽

Microstrip Feed

A UWB antenna with reconfigurable notch band characteristics is proposed in this paper. The tunable notches are created using modified E shaped resonators that can be reconfigured to modified C shape; etched on either side of the microstrip feed line of a circular patch UWB antenna. The single and dual band rejection characteristics are created by using C and E shaped structure respectively. Reconfigurability is achieved by using two RF switches. By varying the ON and OFF states of the RF switches, two different notch bands are created; single notch band from 4 to 6.2 GHz and an additional notch band from 7.6 to 10 GHz are achieved. These wide bandwidth rejection performance leads to notching of WLAN, WiMAX, C-band frequencies and X band Satellite communication systems.

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A Pine Shaped Dual-Band Frequency Reconfigurable Antenna

Journal of Engineering Research and Reports ◽

10.9734/jerr/2021/v20i1217419 ◽

2021 ◽

pp. 42-52

Author(s):

Shikha Sahu ◽

Harish Chandra Mohanta

Keyword(s):

Wireless Communication ◽

Communication Systems ◽

Satellite Communication ◽

Antenna System ◽

Dual Band ◽

Reconfigurable Antenna ◽

Rf Switches ◽

Band Frequency ◽

High Frequency Structure Simulator ◽

Frequency Reconfigurable Antenna

In recent years reconfigurable antennas have attracted a lot of attention in modern wireless communication systems. In satellite communication and ECM system, there has always been a continuous demand for smaller size, lighter weight antenna system that has properties to accomplish selectivity in frequency, bandwidth, polarization and gain. A frequency reconfigurable antenna is proposed for wireless communication. We can achieve Frequency reconfiguration by modifying physical or electrical dimensions of the antenna using RF-switches, impedance loading or tunable material. The design and simulation of the proposed antennas are done using ANSYS high-frequency structure simulator (HFSS) version-19. The proposed antenna is taken as a triangular shape whose length and width are 50mm and 25mm respectively. Here reconfigurability is achieved by RF switches placed in the radiator. The antenna analysis is done by taking different conditions of the switch. Total four switching condition is simulated and for each case, distinctive resonating frequencies are accomplished with acceptable reflection coefficient. The frequency bands of the antenna are varied from 2.12 GHz to 5.27 GHz. This antenna covers S-band and C band. After simulating the design the gain and efficiency of the antenna are verified successfully. Antenna fabrication and measurement of different parameters will be done in future. A comparison of the measured result will be analyzed with some existing antenna outcomes.

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