Anritsu HFE0104_Editorial 电路图.pdf

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1、6High Frequency Electronics 2004 Uncertainty Makes Most Predictions Impossible Gary Breed Editorial Director W ill the return to a strong economy continue? Will consumers continue to spend on new technology? Will the government continue its renewed spending with little concern for deficits? Will we

2、still be in Iraq in 2005? Is there life on Mars? Who knows? I have desires, opinions and rough ideas on these matters, but thats all.Too many matters are in flux to do anything but make a wild guess. Fortunately, there are a few easy predictions. The economy will continue to operate reliably, whethe

3、r it gets better, worse or stays about the same. As long as Alan Greenspan is running the Fed, and as long as inflation stays away, were likely to have low interest rates for the rest of the year. Products will continue to be designed and manufac- tured by our readers and their companies. Some of th

4、e other predictable things in 2004 include activities and events. Trade shows and technical conferences will continue to be an essential part of the interaction among engineers, and between vendors and their customers.We will have our biggest participation in the Wireless System Design Conference, t

5、he IEEE MTT-S International Microwave Symposium and European Microwave Week. But, you may find some of the High Frequency Electronics staff at the WCA Broadband Symposium, the CTIA Wireless 2004 show, the NAB Convention and Exhibition, and some of the excellent conferences that take place throughout

6、 the year. And theres one more: High Frequency Electronics will continue to deliver timely and diverse technical articles and other essential informa- tion for engineers whose work requires them to increase their expertise and knowledge. We will keep covering the principles unique to high fre- quenc

7、y product design, the tools and equipment to accomplish those designs, and the components that go into them. We have survived the toughest economic conditions of the past 25 years. Since were still here and enjoying what we do, it does not take a crystal ball to predict that well continue. A predict

8、ion I hope comes true is that all of you have a prosperous 2004! May your personal careers get a boost; your companies succeed (and the value of your stock options soar); and may every commercial, military and consumer product you make be a hit in the marketplace! EDITORIAL Editorial Director Gary B

9、reed Tel: 608-845-3965 Fax: 608-845-3976 Publisher Scott Spencer Tel: 603-472-8261 Fax: 603-471-0716 Associate Publisher Tim Burkhard Tel: 707-544-9977 Fax: 707-544-9375 Production Assistance Ken Crocker Business office High Frequency Electronics 7 Colby Court, Suite 4-436 Bedford, NH 03110 Editoria

10、l and Production office High Frequency Electronics 6666 Odana Road, #508 Madison,WI 53719 Also Published Online at Subscriptions Subscribe online at: or by mail to the Business Office address above E-mail inquiries to: circulation Advertising information on page 71 High Frequency Electronics, Vol. 3

11、 No. 1, January 2004. Published ten times per year by Summit Technical Media, LLC, 7 Colby Court, Suite 4-436, Bedford, NH 03110. Subscriptions are free to qualified technical and manage- ment personnel involved in the design, man- ufacture and distribution of electronic equip- ment and systems at h

12、igh frequencies. Send information requests by mail to the above address, by telephone to 603-472-8261, by fax to 603-471-0716, or by E-mail to All contents Copyright 2004, Summit Technical Media, LLC RadioFans.CN 收音机爱 好者资料库 Government, Committee or Proprietary Standards? This issues Technology Repor

13、t updates the status of a few stan- dards activities that are of interest to our segment of the electronics industry. One of the topics that arises from time-to-time is the value of committee-developed stan- dards like thesewhen do they work best, when do they get in the way, and when does a proprie

14、tary specification have the advantage? The argument for standards is interoperability. The idea is that, if component suppliers and equip- ment manufacturers understand exactly how a system is supposed to operate, all their products will work together. The combination of cooperation and competition

15、is sup- posed to speed time-to-market, give customers more choices and make everybody happy. Some standards are mandated by regulatory bodies.The argument for this is simple: efficiency. If there is only one standard with no dis- cussion, a “shakeout” period is not required. This was the normal pro-

16、 cedure from 1934 to the 1990s, cre- ating log-running standards such as NTSC color television. About the 1980s, growth in elec- tronic technology was proceeding so fast that government regulators could no longer keep up. In the U.S. the FCC has almost entirely aban- doned mandated standards, and go

17、vernment telecom agencies worldwide have loosened their tight control of technology. (Im lim- iting this discussion to radiated technologies that have treaty agreements and laws requiring their management.) As noted first, some standards are carefully crafted by industry committees because they are

18、deemed so important that a stan- dard is essential for that particular market to develop. IEEE 802.11 is a good example of the success of this approach. The market took off quickly as soon as “Wi-Fi” stan- dards were agreed upon. The third method is a specifica- tion developed at a single company. O

19、f course, others may or may not choose to jump on the bandwagon and make it a de facto standard. Bluetooth and Zigbee are two of these types of specs that are in the news today (MS-DOS is a perfect example in the computer world). Each of these methods comes in and out of favor, yet despite argu- men

20、ts by their proponents, none is the single best way to create a stan- dard. As measured by their mar- ketplace success and lasting impact, each has created great suc- cesses and dismal failures. From January 2004 High Frequency Electronics Copyright Summit Technical Media, LLC RadioFans.CN 收音机爱 好者资料库