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  • 型号: ANT-315-SP
  • 制造商: LINX TECHNOLOGIES
  • 库位|库存: xxxx|xxxx
  • 要求:
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+xxxx $xxxx ¥xxxx

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ANT-315-SP产品简介:

ICGOO电子元器件商城为您提供ANT-315-SP由LINX TECHNOLOGIES设计生产,在icgoo商城现货销售,并且可以通过原厂、代理商等渠道进行代购。 提供ANT-315-SP价格参考以及LINX TECHNOLOGIESANT-315-SP封装/规格参数等产品信息。 你可以下载ANT-315-SP参考资料、Datasheet数据手册功能说明书, 资料中有ANT-315-SP详细功能的应用电路图电压和使用方法及教程。

产品参数 图文手册 常见问题
参数 数值
产品目录

射频/IF 和 RFID

描述

ANTENNA 315MHZ PLANAR (SMT)天线 SMD Planar Ant. 315MHz

产品分类

RF 天线

品牌

Linx Technologies

产品手册

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产品图片

rohs

符合RoHS无铅 / 符合限制有害物质指令(RoHS)规范要求

产品系列

Linx Technologies ANT-315-SPSP - Antenna Factor

数据手册

点击此处下载产品Datasheet

产品型号

ANT-315-SP

VSWR

1.9

产品目录绘图

产品种类

天线

其它名称

ANT-315-SP_
ANT-315-SP_-ND
ANT315SP

包装

散装

商标

Linx Technologies

增益

-

天线类型

芯片,1/4 波

安装类型

表面贴装

宽度

0.54 in

封装

Tube

尺寸

1.1 in L x 0.54 in W x 0.06 in H

工厂包装数量

20

带宽

5 MHz

应用说明

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技术类型

Planar Antenna

标准包装

20

端接

表面贴装型

端接类型

SMD/SMT

系列

SP

长度

1.1 in

阻抗

50 Ohms

频带数

1

频率

315 MHz

高度

0.06 in

高度(最大值)

0.059"(1.50mm)

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PDF Datasheet 数据手册内容提取

ANT-315-SP Data Sheet by Product Description The Splatch uses a grounded-line technique to 27.94 mm achieve outstanding performance from a tiny (1.10") surface-mount element. This unique antenna is designed for hand or reflow-mounting directly to a 13.7 mm (0.54") product’s circuit board. Its low cost makes it ideal for volume applications. Unlike many compact 1.5 mm antennas, the Splatch exhibits good proximity (0.06") 5.1 mm 1.27 mm performance, making it an appropriate choice for (0.20") (0.05") handheld applications such as remote controls, pagers and alert devices. Features Recommended Footprint • Very low cost 5.1 mm • Ultra-compact package (0.20") • Direct PCB attachment 2.54 mm • Ideal for concealed / internal mounting (0.10") • Perfect for compact portable devices 2.03 mm • Suitable for hand or reflow-assembly (0.08") • Resistant to proximity effects Recommended Mounting Electrical Specifications 38.86 mm Center Frequency: 315MHz (1.53 in) 6.32 mm Recom. Freq. Range: 312–317MHz (0.25 in) Bandwidth: 5MHz Wavelength: ¼-wave 15.48 mm No ground plane or traces (0.57 in) under the antenna VSWR: ≤ 1.9 typ. at center PCB pads for the Splatch Impedance: 50-ohms Vias to ground plane Connection: Surface-mount Ground plane on bottom layer for counterpoise Oper. Temp. Range: –40°C to +130°C 50-ohm microstrip line Electrical specifications and plots measured on 3.8 cm x 8.4 cm (1.50” x 3.30”) reference ground plane. 98.55 mm (3.88 in) 83.57 mm Ordering Information (3.29 in) ANT-315-SP (supplied in tubes of 20 pieces) ANT-315-SP-T (Tape and reel of 500 pieces) 0.51 mm (0.02 in) 0.51 mm 37.85 mm (0.02 in) (1.49 in) Please see AN-00502 for more details on PCB layout. – 1 – Revised 1/3/2017

Counterpoise Quarter-wave or monopole antennas require an associated ground plane counterpoise for proper operation. The size and location of the ground plane relative to the antenna will affect the overall performance of the antenna in the final design. When used in conjunction with a ground plane smaller than that used to tune the antenna, the center frequency typically will shift higher in frequency and the bandwidth will decrease. The proximity of other circuit elements and packaging near the antenna will also affect the final performance. For further discussion and guidance on the importance of the ground plane counterpoise, please refer to Linx Application Note AN-00501: Understanding Antenna Specifications and Operation. VSWR Graph VSWR 1.558 Reflected Power 3:1 25% 2:1 11% 1:1 0% 277.5MHz 315MHz 352.5MHz What is VSWR? The Voltage Standing Wave Ratio (VSWR) is a measurement of how well an antenna is matched to a source impedance, typically 50-ohms. It is calculated by measuring the voltage wave that is headed toward the load versus the voltage wave that is reflected back from the load. A perfect match has a VSWR of 1:1. The higher the first number, the worse the match, and the more inefficient the system. Since a perfect match cannot ever be obtained, some benchmark for performance needs to be set. In the case of antenna VSWR, this is usually 2:1. At this point, 88.9% of the energy sent to the antenna by the transmitter is radiated into free space and 11.1% is either reflected back into the source or lost as heat on the structure of the antenna. In the other direction, 88.9% of the energy recovered by the antenna is transferred into the receiver. As a side note, since the “:1” is always implied, many data sheets will remove it and just display the first number. How to Read a VSWR Graph VSWR is usually displayed graphically versus frequency. The lowest point on the graph is the antenna’s operational center frequency. In most cases, this is different than the designed center frequency due to fabrication tolerances. The VSWR at that point denotes how close to 50-ohms the antenna gets. Linx specifies the recommended bandwidth as the range where the typical antenna VSWR is less than 2:1. Copyright © 2017 Linx Technologies 159 Ort Lane, Merlin, OR 97532 Phone: +1 541 471 6256 Fax: +1 541 471 6251 – 2 – ANT-315-SP Data Sheet www.linxtechnologies.com by

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