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Log-Periodic Dipole Array Antenna

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Directional Antennas

Log-Periodic Dipole Array Antenna

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SKU: MR-ANT048

Log-Periodic Dipole Array Antenna 400MHz-8GHz for TinySA Ultra Spectrum Analyzer

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Estimated Delivery: 12-26 Days (International), 3-6 Days (United States)

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  • The ZA048 is a printed LDPA(Log-Periodic Dipole Array Antenna). Optimized design techniques significantly reduce its size, making it compatible with the tinySA ULTRA spectrum analyzer. Using new technology, it covers 400MHz - 8GHz in a 27x23cm size, with some low - frequency directionality loss
  • The antenna's input resistance is rated at 50Ω, and return loss fluctuates when the antenna is connected to a 50Ω source. In most frequency bands above 1GHz, the return loss is about 10dB or less, and the VSWR is about 2. In the 400M-1GHz band, the return loss is about 4.5dB or less, and the VSWR is about 4. The VSWR increases rapidly at frequencies below 400MHz
  • ZA048 log-periodic dipole array antenna can be used for radio direction finding under the frequency between 1GHz-8.5GHz without strict requirements. It exerts a decent sensitivity of direction of the signal source when being held single-handedly and changes directions along with the body
  • Due to antenna area constraints, some low - frequency directionality was sacrificed. Please refer to the gain and front-back comparison charts below
  • Packing List: ZA-048 Log-Periodic Dipole Array Antenna 1set (TinySA ultra NOT included)

 

Specifications

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    DIY Supplies
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Description

 

The ZA - 048 antenna is a printed LDPA. We have used some optimized design techniques to significantly reduce the size of the antenna, and it can now be easily used with the tinySA ULTRA.Using new technology, we are now able to match the ultra-wide range of 400MHz-8GHz with only 27x23cm, but with some loss of low-frequency directionality.

The antenna's input resistance is rated at 50Ω, and return loss fluctuates when the antenna is connected to a 50Ω source. In most frequency bands above 1GHz, the return loss is about 10dB or less, and the VSWR is about 2. In the 400M-1GHz band, the return loss is about 4.5dB or less, and the VSWR is about 4. The VSWR increases rapidly at frequencies below 400MHz. 
                                                                                                    

                                                                                                         S - Parameter Plot

                        S8df3b20f962d40099c4de4935b4749689.jpg?width=1193&height=475&hash=1668 

 

 
 

ZA - 048 can be used for radio direction finding under the frequency between 1GHz-8.5GHz without strict requirements. It exerts a decent sensitivity of direction of the signal source when being held single-handedly and changes directions along with the body. We designed it to be as low-frequency matching and directional as possible, but we had to lose some low-frequency directionality due to antenna area constraints.Please refer to the gain and front-back comparison charts below. 

 

                                                                                                          Gain Plot 
                 Sae1cd30b3ec04a589af968bcd51c723az.jpg?width=1234&height=491&hash=1725 

 

                                                                                               Antenna Parameter Plot

                    df 

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Log-Periodic Dipole Array Antenna

Log-Periodic Dipole Array Antenna

SKU: MR-ANT048