| 主题:飞利浦RF小信号产品，将世界连接起来 |
| 在线问答: |
| [问：Robter] |
跳频通信的同步问题一直都令从事扩频通信的工程师狠头痛，philips作为RF领域的著名厂家，有没有给我们提供比较好的解决方案。
此外，philips 的RF器件的主要国内代理在那里，如何获得相关器件的资料，网站地址是哪里 |
| [答：Weber] |
http://www.semiconductors.philips.com/
http://www.semiconductors.philips.com/products/xref/ |
[2004-11-25 15:26:32] |
| [问：robotone] |
RF的抗干扰能力如何，通讯距离和强度？
RF对外的电磁污染如何解决？
到目前为止，成功的运用案例和场所及价格？ |
| [答：Grace] |
RF抗干扰能力取决与您的设计，具体的方案请留下具体联系方式和感兴趣的产品，我们会与您联系 |
[2004-11-25 15:26:39] |
| [问：yhonghua2002] |
飞利浦RF小信号产品有没有在TPMS（汽车轮胎压力检测系统）中的应用解决方案？ |
| [答：Weber] |
yes we had,pls leave you address |
[2004-11-25 15:27:32] |
| [问：yonshosing] |
Philips的RF小信号产品除了射频卡外还有那些方面的产品？另外我在实际的运用中感到那些RF天线在复杂的安装环境下它的涡流损耗很严重，以至于很难达到理想的读写距离，请问有什莫好的解决方案？另外从目前来看，我还感觉到Hitag解决方案与Mafire卡相比其可靠性，以及开发应用的难度方面是它很难推广，那莫它是否还有没有好的前景？谢谢！ |
| [答：Bennett] |
this seminar is for RF discrete, we are not familiar with hitag and
mafair.
However, sensitivity is most important, you have to use device with low
NF in order to improve sensitivity, that is increase communication range |
[2004-11-25 15:28:07] |
| [问：myseeking] |
请问贵公司的rf产品 最大发射功率是多少？ 是什么型号？ 评估板在视距通讯下
能有多少距离？谢谢 |
| [答：Bennett] |
My product line is focus on small signal. that is, highest power is
about 100mW. normally can reach 100m range.
type no is BGA6589. |
[2004-11-25 15:30:07] |
| [问：maeleton1] |
在小信号的设计中，器件的的非线性是不是可以考虑较少？ |
| [答：Weber] |
这要看具体应用，不过选管子时还是要关注P1dB 指标 |
[2004-11-25 15:31:08] |
| [问：encaon] |
RF宽带晶体管的低频和高频性能如何?总的带宽目前能达到多高? |
| [答：Johan] |
This is a very general question, is it possible to be more specific?
transistor type number,
we have transistors with fT from 1 to 40 GHz! |
[2004-11-25 15:33:22] |
| [问：maeleton1] |
贵公司所提供的器件是否提供仿真模型以供仿真？ |
| [答：Weber] |
我们对一些器件进行了建模，仿真时可以用到，你能提供具体型号吗 |
[2004-11-25 15:34:24] |
| [问：wu__peng] |
I have used PDIUSBD12 in our product.Now i
need chip or sensor which can be used in hot water net for
respecting temperature humidity and press. |
| [答：Johan] |
In my opinion we don"t have these kind of products. |
[2004-11-25 15:35:16] |
| [问：chenfx] |
用一个什么样的RF放大器才能把有线电视机顶盒的输入门限(50~860MHZ范围内)降到30db以下、而C/N都在24db以上。要求成本不超过$1元。 |
| [答：Bennett] |
you have choose a device with very good noise performance, it will increase
sensitivity.
ot the other hand, phase noise of device and tank circuit is important
to improve c/n level.
Please leave your contact means, we can further discuss this topic.
BFG425W maybe a good choice. |
[2004-11-25 15:37:08] |
| [问：maeleton1] |
目前Philips的LNA的噪音能达到多少?噪音和封装有多大的关系?能举例说明吗? |
| [答：Weber] |
LNA用的MMIC 目前1dB@900MHz 型号为BGU2003 |
[2004-11-25 15:38:52] |
| [问：ylqin] |
1、生产RF小信号产品的主流技术有哪些？低温共烧陶瓷技术是否是主流技术。
2、到微波波段其小型化是否是通过微带线实现的，还有其他技术吗？
3、主要的设计软件EDA有哪些？ |
| [答：Bennett] |
1. main stream has silicon, SiGe and GaAs.
低温共烧陶瓷技术 is only apply to certain app because of cost.
2.是通过微带线实现的
3. There are many kind of RF software such as HP ADS, eagleware...., you
can find it on internet |
[2004-11-25 15:40:54] |
| [问：duxiong] |
请问是不是所有的产品都有对应的Saber模型？ |
| [答：Bennett] |
we have s parrmeter and spice model |
[2004-11-25 15:41:45] |
| [问：Deng] |
Philips有那些RF功率器件可用在WiMAX的接收和发送部分?请详细介绍它的性能. |
| [答：Bennett] |
I"m not familiar with Wimax now, please leave contact means, will contact
with you. thanks. |
[2004-11-25 15:42:57] |
| [问：catinux] |
RF小信号产品主要的应用领域有哪些？作为嵌入式软件工程师，如果要把菲利普的RF小信号产品整合到应用里，需要做那些工作？ |
| [答：Grace] |
应用领域很多，从工业、消费电子到无线连接等等。需了解它的基本性能 |
[2004-11-25 15:43:12] |
| [问：lion_lei] |
philips是否有功率可调的RF器件或模块？ |
| [答：Weber] |
可以试试 BGA2031 MMIC |
[2004-11-25 15:44:36] |
| [问：weijie_lee] |
PHILIPS的RF解决方案中有没有专为汽车电子使用的产品及方案？ |
| [答：Grace] |
有专为car radio tuner的方案，如NICE, NECTAR, CREST等方案 |
[2004-11-25 15:45:30] |
| [问：ecnan
jing_EBY7E] |
对于UWB前端收发用什么管子，性价比最好？ |
| [答：Johan] |
Which frequency range should I think of here?
UWB ultra wide band is very general.
Should it be for GSM, PCS etc?
Bennett, Weber, Grace I no nothing about pricing. |
[2004-11-25 15:46:54] |
| [问：zzkeng] |
从那里可下载RF晶体管的S参数表和阻抗圆图? |
| [答：Weber] |
很多型号S参数表和阻抗圆图在datasheet上就有，你可以下载电子文档 |
[2004-11-25 15:46:56] |
| [问：lbgy] |
RF小信号现在主要应用在哪些领域及相关产品！ |
| [答：Grace] |
它的应用范围非常广，从工业、消费电子到无线连接等等。具体产品登陆我们的网站http://www.philips.semiconductors.com/markets/mms
/products/discretes/documentation/rf_manual参阅《RF Manual》 |
[2004-11-25 15:47:59] |
| [问：fybao] |
请问飞利浦用于射频卡电子锁方面的芯片有哪几款，有没有现成方案，请介绍一下！
我们正在研发射频卡电子锁线路板，如果你们有解决方案，我们会考率采用！
浙江大学 鲍方云
msn:fy_bao@hotmail.com |
| [答：Bennett] |
there are several approach to implemement.
however, it related to your hardware structure and freq band.
I cannot comment without details info. |
[2004-11-25 15:49:47] |
| [问：normancao] |
一点粗浅和不成熟的问题：
1.RF产品的发射天线设计及其要求；
2.内置天线的极化？
3.RF模块功率与覆盖面积（场强达100uv/m）的经验公式；
4.RF模块对被调制信号的要求 。 |
| [答：Johan] |
Perhaps this question can be resend by mail, and
be more specific, but I"m not an expert in antenna design and requirements. |
[2004-11-25 15:49:58] |
| [问：sxhgzcy] |
RF信号的接收和发射天线一般是如何处理？ |
| [答：Grace] |
一般根据发射功率和频率来决定天线方案 |
[2004-11-25 15:52:09] |
| [问：jiesi1209] |
请问：一般RF信号检波出来之后一定要与原编码的相位匹配吗？ |
| [答：Johan] |
What do you mean with the original code? |
[2004-11-25 15:54:38] |
| [问：jindongw] |
耐压50V以上的开关性能最好的RF产品有那些？ |
| [答：Bennett] |
Philips offer cheap switch solution, that is PIN diode. please contact
with us, we"ll send product portfolio to you. |
[2004-11-25 15:55:11] |
| [问：guyue8999] |
贵公司有什么样的ＲＦ模块，有什么优势？通信距离为多少？ |
| [答：Weber] |
你指的是MMIC,我们在LNA,MIXer,PA等都有相应的产品，低NF,小功耗，发射距离与应用环境有关。请参考我们的最新手册。 |
[2004-11-25 15:55:40] |
| [问：kllyj2008] |
作RF开关应用和放大应用,在选管上有何差别? |
| [答：Grace] |
考虑的参数不同，作为开关应用关心的参数是插损，隔离等，作为放大应用要考虑增益，噪声系数等 |
[2004-11-25 15:56:26] |
| [问：kllyj2008] |
使用中RF MOSFET容易烧毁，设计时最重要的要注意什么以确保可靠性？ |
| [答：Grace] |
要注意过压保护的设计和防静电的设计 |
[2004-11-25 15:58:19] |
| [问：fuyl] |
1、飞利浦RF小信号产品占国际市场的份额？占该公司销售总额的百分比？
2、飞利浦与中方合作在中国生产RF小信号产品的可能性？ |
| [答：Bennett] |
1. I have no details info
2. 飞利浦与中方合作在中国生产RF小信号产品的可能性? We have assemply factory in HK and China
already. Further cooperation is depend on management level. |
[2004-11-25 15:58:21] |
| [问：encaon] |
从综合性能来将(包括功率,使用和可靠性等),那种生产工艺较优?有发展前途? |
| [答：Bennett] |
1. Silicon has cost advantage
2. GaAs is excent in noise and good gor power amp
3. SiGe is in between
each has its own territory |
[2004-11-25 16:00:07] |
| [问：oyeahi] |
请问专家，与竞争对手的产品相比，飞利浦的小信号产品有何优势？ |
| [答：Weber] |
1.产品系列齐全，one-stop-shopping,
2.有极高的性价比
3.产品性能特别是NF，Power，体积等方面有独到之处。
4.有非常强大的销售渠道以及技术支持。 |
[2004-11-25 16:01:47] |
| [问：qingfeng2010] |
Philips RF 小信号产品所用芯片和
Nordic nRF系列芯片在功耗、传输距离、传输速率
等方面有什么优势？ |
| [答：Johan] |
Can you please be more specific, on this,
I understand you want to use Nordic nRF chips together with philips discretes. |
[2004-11-25 16:03:00] |
| [问：zzkeng] |
如何选择推挽输出的两个晶体管以扩大输出功率?要考虑到那些因素? |
| [答：Johan] |
First which frequecny range?
current gain should be equal. |
[2004-11-25 16:05:31] |
| [问：zhngjnpng911] |
放大器的非线性失真和那些因素有关?目前Philips的线性性能最好的晶体管有那些?它的非线性失真,二/三次谐波达到什么水平? |
| [答：Bennett] |
it"s related to power handle capability of device. I"ve to check databook
in order to answer. |
[2004-11-25 16:05:48] |
| [问：shen1025] |
我在产品设计中曾经应用过飞利浦公司的MCU产品、希望能获取一些产品的相关选型参数和应用资料。不知道如何才能获取。在此深表感谢 |
| [答：Weber] |
此问题不在这次论坛范围，不过你可以与Philips办事处联系（属MMS产品） |
[2004-11-25 16:06:12] |
| [问：kllyj2008] |
微功率发射及接收用何种天线比较好 |
| [答：Bennett] |
I"m not expert of antenna, so cannot this question. |
[2004-11-25 16:06:31] |
| [问：swiriuswmx] |
请问，在PCB上如何合理设计RF电路才能更理想？ 另外飞利浦关于RF的处理集成芯片都有那些？典型些的。谢谢 |
| [答：Grace] |
地线要尽量短，电源的去耦合也很重要。我们公司有很多RF产品如用于低噪放大的mmic，BGA2001,BGA2003或BGU2003等 |
[2004-11-25 16:07:07] |
| [问：jiaowuke1] |
MMIC什么意思 |
| [答：Weber] |
单片微波集成电路的英文首写字母缩写 |
[2004-11-25 16:07:42] |
| [问：riello] |
RF输出级如何和天线的阻抗匹配以达到最佳的发送?接收级呢? |
| [答：Johan] |
This Rf Basics,
Put both impedances in the smith chart
and design a impedance transformer circuit which
matches the two. |
[2004-11-25 16:08:42] |
| [问：lgc2000531] |
请问在射频通信中如何抑制谐波以及减小相位误差？ |
| [答：Johan] |
Sorry,
this question is to fague for me. |
[2004-11-25 16:11:02] |
| [问：DirectCG] |
RF放大器中如何选择和解决去耦问题?级间耦合采用DC和AC有何优缺点? |
| [答：Weber] |
我们在应用手册上有着方面的介绍，如何更具不同的应用选择不同的器件 |
[2004-11-25 16:11:12] |
| [问：yhonghua2002] |
请问：PCB板天线和螺旋天线，哪个在传输性能上更优越？ |
| [答：Johan] |
Sorry
I"m not an antenna expert |
[2004-11-25 16:11:39] |
| [问：encaon] |
请介绍”Smart Transistor”的概念和它的主要特征. |
| [答：Bennett] |
smart transistor means
1. temperature compensation circuit is build in
2. bias circuit is build in
3. some types even build in matching circuit
4. there are different types for building block
user can easy choose device based on requirement, save lot of engineering
time. |
[2004-11-25 16:13:18] |
| [问：ouyang530] |
您好，可以不可以详细的讲解一下贵公司RF小信号产品区别于其他产品的一些性能参数，还有它的一些改进方案。 |
| [答：Grace] |
一般的RF小信号是使用S参数的.我们一直在对产品核心技术，封装等进行改进，包括这次有无引线的封装产品推出，更有利于您的设计和排版。 |
[2004-11-25 16:13:57] |
| [问：zlike_2004] |
贵公司的有哪些RF产品可以应用在手机设计上? |
| [答：Weber] |
我们有很多这方面的产品，在LNA,MIXER,Buffer,IF放大，驱动以及末级功放，有Trs 和MMIC |
[2004-11-25 16:15:11] |
| [问：Deng] |
从手机应用来将,是否分立元件不如集成电路好?Philips能提供的用在手机中的RF分立器件主要有那些?功能是什么? |
| [答：Bennett] |
Handset needs ic solution because it has to keep it compact (small size).
RF device in handset are power module, PIN diode (as switch) and high
freq transistor for oscillation (for certain platform) |
[2004-11-25 16:15:55] |
| [问：zlike_2004] |
贵公司有没有GSM手机上的功放模块. |
| [答：Bennett] |
Yes, we have bgy28x series.
please contact with Philips" local for details. |
[2004-11-25 16:16:41] |
| [问：helloyuan] |
Philips 在三极管上最近有什么新动向？ |
| [答：Weber] |
4.5代晶体管BFG424F,以及SiGe第6代晶体管BFU*** |
[2004-11-25 16:17:45] |
| [问：zxp1963] |
飞利浦RF小信号产品应用范围，信澡比，温飘情况？ |
| [答：Grace] |
它的应用范围非常广，从工业、消费电子到无线连接等等。请告知具体感兴趣的产品及联系方式，稍后与你联系 |
[2004-11-25 16:17:47] |
| [问：DirectCG] |
Philips用在Wi-Fi的器件有那些?能举例说明吗? |
| [答：Bennett] |
Philips has 802.11b, low power version and 802.11a/b/g product. please
contact with local office. |
[2004-11-25 16:18:49] |
| [问：kllyj2008] |
设计高频功率放大器时,对PCB如何选择?如何进行布局? |
| [答：Weber] |
大面积接地，以及分布电容的考虑是必须的，当然RF设计多半靠的是经验，具体不便在此展开。 |
[2004-11-25 16:21:22] |
| [问：zhz141] |
飞利浦半导体公司RF产品,应用较广，但RF产品的性能参数不易查询，如何完善网上查询。 |
| [答：Bennett] |
most of product, you can get its spar and spice model from web site.
Please advise actual type which you cannot get its parameter, we"ll help
you get it. |
[2004-11-25 16:21:26] |
| [问：zlike_2004] |
现在手机的集成度已经很高了,已经几乎不用分立元件的VCO,LNA了,有的收发系统甚至只有一块芯片完成,不知贵公司有无这方面的产品. |
| [答：Bennett] |
yes, but it"s handle by IC group. |
[2004-11-25 16:22:03] |
| [问：meteor_chu] |
怎样获得关于小信号RF分立器件的相关应用资料!! |
| [答：Weber] |
1.http://www.semiconductors.philips.com/products/xref/
2.与Philips办事处及代理商联系 |
[2004-11-25 16:23:28] |
|
